Error 500 in web interface when trying to change branch

Install/Maintain/Configure
1

After upgrading Gitea from 1.8.3 to 1.9.x or 1.10.3 I’m getting error 500 when trying to switch to another branch than master. Using command line, I can create and switch branches without any problems.

My environment:
OS: FreeBSD 11.3
Gitea: 1.10.3
Git: 2.25.1
Database: MySQL 5.7.29

The gitea.log states an error “GetBranchCommit: object not found”, but I have no clue about the reason. The following snippet shows the log output for a request to change the branch currently displayed in the browser:

2020/02/18 14:57:08 .../xorm/session_raw.go:76:queryRows() [I] [SQL] SELECT `id`, `lower_name`, `name`, `full_name`, `email`, `keep_email_private`, `email_notifications_preference`, `passwd`, `passwd_hash_algo`, `must_change_password`, `login_type`, `login_source`, `login_name`, `type`, `location`, `website`, `rands`, `salt`, `language`, `description`, `created_unix`, `updated_unix`, `last_login_unix`, `last_repo_visibility`, `max_repo_creation`, `is_active`, `is_admin`, `allow_git_hook`, `allow_import_local`, `allow_create_organization`, `prohibit_login`, `avatar`, `avatar_email`, `use_custom_avatar`, `num_followers`, `num_following`, `num_stars`, `num_repos`, `num_teams`, `num_members`, `visibility`, `repo_admin_change_team_access`, `diff_view_style`, `theme` FROM `user` WHERE `id`=? LIMIT 1 []interface {}{4} - took: 1.676713ms
2020/02/18 14:57:08 ...s/context/context.go:330:func1() [D] Session ID: e631d5692a501d48
2020/02/18 14:57:08 ...s/context/context.go:331:func1() [D] CSRF Token: 7ETOydR8a3bmdwQIa9UJX0A5RDQ6MTU4MjAzMTQzNzg0MTc1OTA5MQ
2020/02/18 14:57:08 .../xorm/session_raw.go:76:queryRows() [I] [SQL] SELECT count(*) FROM `notification` WHERE (user_id = ?) AND (status = ?) []interface {}{4, 0x1} - took: 830.28µs
2020/02/18 14:57:08 .../xorm/session_raw.go:76:queryRows() [I] [SQL] SELECT `id`, `owner_id`, `lower_name`, `name`, `description`, `website`, `original_service_type`, `original_url`, `default_branch`, `num_watches`, `num_stars`, `num_forks`, `num_issues`, `num_closed_issues`, `num_pulls`, `num_closed_pulls`, `num_milestones`, `num_closed_milestones`, `is_private`, `is_empty`, `is_archived`, `is_mirror`, `status`, `is_fork`, `fork_id`, `size`, `is_fsck_enabled`, `close_issues_via_commit_in_any_branch`, `topics`, `avatar`, `created_unix`, `updated_unix` FROM `repository` WHERE `owner_id`=? AND `lower_name`=? LIMIT 1 []interface {}{4, "library"} - took: 848.123µs
2020/02/18 14:57:08 .../xorm/session_raw.go:76:queryRows() [I] [SQL] SELECT `id`, `repo_id`, `user_id`, `mode` FROM `collaboration` WHERE `repo_id`=? AND `user_id`=? LIMIT 1 []interface {}{7, 4} - took: 559.23µs
2020/02/18 14:57:08 .../xorm/session_raw.go:76:queryRows() [I] [SQL] SELECT `id`, `repo_id`, `type`, `config`, `created_unix` FROM `repo_unit` WHERE (repo_id = ?) []interface {}{7} - took: 713.883µs
2020/02/18 14:57:08 ...s/repo_permission.go:154:func1() [T] Permission Loaded for 824703262176:artanis in 824703262256:artanis/library:
	Permissions: AccessMode: 824703656032:owner, 5 Units, 0 UnitsMode(s): [ 
	Units[0]: ID: 824703262352 RepoID: 824703262384 Type: 824703656064:UnitTypeCode Config: {}
	Units[1]: ID: 824703262448 RepoID: 824703262480 Type: 824703656096:UnitTypeIssues Config: {"EnableTimetracker":false,"AllowOnlyContributorsToTrackTime":true,"EnableDependencies":true}
	Units[2]: ID: 824703262544 RepoID: 824703262576 Type: 824703656128:UnitTypePullRequests Config: {"IgnoreWhitespaceConflicts":false,"AllowMerge":true,"AllowRebase":true,"AllowRebaseMerge":true,"AllowSquash":true}
	Units[3]: ID: 824703262640 RepoID: 824703262672 Type: 824703656160:UnitTypeReleases Config: {}
	Units[4]: ID: 824703655952 RepoID: 824703655984 Type: 824703656192:UnitTypeWiki Config: {} ]
2020/02/18 14:57:08 .../xorm/session_raw.go:76:queryRows() [I] [SQL] SELECT count(*) FROM `release` WHERE repo_id=? AND is_draft=? []interface {}{7, false} - took: 704.034µs
2020/02/18 14:57:08 .../xorm/session_raw.go:76:queryRows() [I] [SQL] SELECT * FROM `user` INNER JOIN `team_user` ON `team_user`.org_id=`user`.id INNER JOIN `team` ON `team`.id=`team_user`.team_id WHERE (`team_user`.uid=?) AND (`team`.authorize=?) ORDER BY `user`.`name` ASC []interface {}{4, 4} - took: 1.222547ms
2020/02/18 14:57:08 .../xorm/session_raw.go:76:queryRows() [I] [SQL] SELECT `id`, `user_id`, `repo_id` FROM `watch` WHERE `user_id`=? AND `repo_id`=? LIMIT 1 []interface {}{4, 7} - took: 501.744µs
2020/02/18 14:57:08 .../xorm/session_raw.go:76:queryRows() [I] [SQL] SELECT `id`, `uid`, `repo_id` FROM `star` WHERE `uid`=? AND `repo_id`=? LIMIT 1 []interface {}{4, 7} - took: 388.676µs
2020/02/18 14:57:08 ...ules/context/repo.go:648:func1() [E] GetBranchCommit: object not found
2020/02/18 14:57:08 ...s/context/context.go:139:HTML() [D] Template: status/500
2020/02/18 14:57:08 .../xorm/session_raw.go:76:queryRows() [I] [SQL] SELECT `id`, `lower_name`, `name`, `full_name`, `email`, `keep_email_private`, `email_notifications_preference`, `passwd`, `passwd_hash_algo`, `must_change_password`, `login_type`, `login_source`, `login_name`, `type`, `location`, `website`, `rands`, `salt`, `language`, `description`, `created_unix`, `updated_unix`, `last_login_unix`, `last_repo_visibility`, `max_repo_creation`, `is_active`, `is_admin`, `allow_git_hook`, `allow_import_local`, `allow_create_organization`, `prohibit_login`, `avatar`, `avatar_email`, `use_custom_avatar`, `num_followers`, `num_following`, `num_stars`, `num_repos`, `num_teams`, `num_members`, `visibility`, `repo_admin_change_team_access`, `diff_view_style`, `theme` FROM `user` WHERE `id`=? LIMIT 1 []interface {}{4} - took: 1.204913ms
2020/02/18 14:57:08 ...s/context/context.go:330:func1() [D] Session ID: e631d5692a501d48
2020/02/18 14:57:08 ...s/context/context.go:331:func1() [D] CSRF Token: 7ETOydR8a3bmdwQIa9UJX0A5RDQ6MTU4MjAzMTQzNzg0MTc1OTA5MQ
2020/02/18 14:57:08 .../xorm/session_raw.go:76:queryRows() [I] [SQL] SELECT count(*) FROM `notification` WHERE (user_id = ?) AND (status = ?) []interface {}{4, 0x1} - took: 774.001µs
2020/02/18 14:57:08 ...uters/user/avatar.go:25:Avatar() [D] Asked avatar for user artanis and size -1
2020/02/18 14:57:08 .../xorm/session_raw.go:76:queryRows() [I] [SQL] SELECT `id`, `lower_name`, `name`, `full_name`, `email`, `keep_email_private`, `email_notifications_preference`, `passwd`, `passwd_hash_algo`, `must_change_password`, `login_type`, `login_source`, `login_name`, `type`, `location`, `website`, `rands`, `salt`, `language`, `description`, `created_unix`, `updated_unix`, `last_login_unix`, `last_repo_visibility`, `max_repo_creation`, `is_active`, `is_admin`, `allow_git_hook`, `allow_import_local`, `allow_create_organization`, `prohibit_login`, `avatar`, `avatar_email`, `use_custom_avatar`, `num_followers`, `num_following`, `num_stars`, `num_repos`, `num_teams`, `num_members`, `visibility`, `repo_admin_change_team_access`, `diff_view_style`, `theme` FROM `user` WHERE `lower_name`=? LIMIT 1 []interface {}{"artanis"} - took: 1.060362ms
2020/02/18 14:57:09 .../xorm/session_raw.go:76:queryRows() [I] [SQL] SELECT `id`, `lower_name`, `name`, `full_name`, `email`, `keep_email_private`, `email_notifications_preference`, `passwd`, `passwd_hash_algo`, `must_change_password`, `login_type`, `login_source`, `login_name`, `type`, `location`, `website`, `rands`, `salt`, `language`, `description`, `created_unix`, `updated_unix`, `last_login_unix`, `last_repo_visibility`, `max_repo_creation`, `is_active`, `is_admin`, `allow_git_hook`, `allow_import_local`, `allow_create_organization`, `prohibit_login`, `avatar`, `avatar_email`, `use_custom_avatar`, `num_followers`, `num_following`, `num_stars`, `num_repos`, `num_teams`, `num_members`, `visibility`, `repo_admin_change_team_access`, `diff_view_style`, `theme` FROM `user` WHERE `id`=? LIMIT 1 []interface {}{4} - took: 1.066465ms
2020/02/18 14:57:09 ...s/context/context.go:330:func1() [D] Session ID: e631d5692a501d48
2020/02/18 14:57:09 ...s/context/context.go:331:func1() [D] CSRF Token: 7ETOydR8a3bmdwQIa9UJX0A5RDQ6MTU4MjAzMTQzNzg0MTc1OTA5MQ
2020/02/18 14:57:09 .../xorm/session_raw.go:76:queryRows() [I] [SQL] SELECT count(*) FROM `notification` WHERE (user_id = ?) AND (status = ?) []interface {}{4, 0x1} - took: 856.48µs
2020/02/18 14:57:09 ...s/context/context.go:139:HTML() [D] Template: pwa/serviceworker_js

Does anyone have an idea what’s going on and how to solve this issue?

Best regards,
Oliver

2

After having set up a fresh instance of Gitea 1.10.3 on a VM I could narrow down the problem to branch names. It seems that if a branch name contains special chars like the slash character (/), switching to such a branch in the UI results in error 500.

With Gitea 1.8.3 this problem does not occur.

I tried to reproduce this at try.gitea.io with no success.

Best regards,
Oliver