[solved] New entery in log file every 10 seconds

I’ve just installed gitea 1.12.4 on ubuntu using SQLite db.
Today I was checking log file and I have noticed there’s a new log entery in every 10 seconds while server was idle. Here’s a part of it:

2020/10/06 11:25:04 ...m.io/xorm/core/db.go:154:QueryContext() [I] [SQL] SELECT user_id, count(*) AS count FROM notification WHERE user_id IN (SELECT user_id FROM notification WHERE updated_unix >= ? AND updated_unix < ?) AND status = ? GROUP BY user_id [1601970892 1601970902 1] - 523.744µs
2020/10/06 11:25:14 ...m.io/xorm/core/db.go:154:QueryContext() [I] [SQL] SELECT user_id, count(*) AS count FROM notification WHERE user_id IN (SELECT user_id FROM notification WHERE updated_unix >= ? AND updated_unix < ?) AND status = ? GROUP BY user_id [1601970902 1601970912 1] - 406.76µs
2020/10/06 11:25:24 ...m.io/xorm/core/db.go:154:QueryContext() [I] [SQL] SELECT user_id, count(*) AS count FROM notification WHERE user_id IN (SELECT user_id FROM notification WHERE updated_unix >= ? AND updated_unix < ?) AND status = ? GROUP BY user_id [1601970912 1601970922 1] - 527.027µs
2020/10/06 11:25:34 ...m.io/xorm/core/db.go:154:QueryContext() [I] [SQL] SELECT user_id, count(*) AS count FROM notification WHERE user_id IN (SELECT user_id FROM notification WHERE updated_unix >= ? AND updated_unix < ?) AND status = ? GROUP BY user_id [1601970922 1601970932 1] - 589.465µs
2020/10/06 11:25:44 ...m.io/xorm/core/db.go:154:QueryContext() [I] [SQL] SELECT user_id, count(*) AS count FROM notification WHERE user_id IN (SELECT user_id FROM notification WHERE updated_unix >= ? AND updated_unix < ?) AND status = ? GROUP BY user_id [1601970932 1601970942 1] - 531.567µs
2020/10/06 11:25:54 ...m.io/xorm/core/db.go:154:QueryContext() [I] [SQL] SELECT user_id, count(*) AS count FROM notification WHERE user_id IN (SELECT user_id FROM notification WHERE updated_unix >= ? AND updated_unix < ?) AND status = ? GROUP BY user_id [1601970942 1601970952 1] - 531.986µs
2020/10/06 11:26:04 ...m.io/xorm/core/db.go:154:QueryContext() [I] [SQL] SELECT user_id, count(*) AS count FROM notification WHERE user_id IN (SELECT user_id FROM notification WHERE updated_unix >= ? AND updated_unix < ?) AND status = ? GROUP BY user_id [1601970952 1601970962 1] - 548.609µs
2020/10/06 11:26:14 ...m.io/xorm/core/db.go:154:QueryContext() [I] [SQL] SELECT user_id, count(*) AS count FROM notification WHERE user_id IN (SELECT user_id FROM notification WHERE updated_unix >= ? AND updated_unix < ?) AND status = ? GROUP BY user_id [1601970962 1601970972 1] - 572.005µs
2020/10/06 11:26:24 ...m.io/xorm/core/db.go:154:QueryContext() [I] [SQL] SELECT user_id, count(*) AS count FROM notification WHERE user_id IN (SELECT user_id FROM notification WHERE updated_unix >= ? AND updated_unix < ?) AND status = ? GROUP BY user_id [1601970972 1601970982 1] - 631.231µs
2020/10/06 11:26:34 ...m.io/xorm/core/db.go:154:QueryContext() [I] [SQL] SELECT user_id, count(*) AS count FROM notification WHERE user_id IN (SELECT user_id FROM notification WHERE updated_unix >= ? AND updated_unix < ?) AND status = ? GROUP BY user_id [1601970982 1601970992 1] - 578.575µs
2020/10/06 11:26:44 ...m.io/xorm/core/db.go:154:QueryContext() [I] [SQL] SELECT user_id, count(*) AS count FROM notification WHERE user_id IN (SELECT user_id FROM notification WHERE updated_unix >= ? AND updated_unix < ?) AND status = ? GROUP BY user_id [1601970992 1601971002 1] - 621.109µs
2020/10/06 11:26:54 ...m.io/xorm/core/db.go:154:QueryContext() [I] [SQL] SELECT user_id, count(*) AS count FROM notification WHERE user_id IN (SELECT user_id FROM notification WHERE updated_unix >= ? AND updated_unix < ?) AND status = ? GROUP BY user_id [1601971002 1601971012 1] - 529.476µs
2020/10/06 11:27:04 ...m.io/xorm/core/db.go:154:QueryContext() [I] [SQL] SELECT user_id, count(*) AS count FROM notification WHERE user_id IN (SELECT user_id FROM notification WHERE updated_unix >= ? AND updated_unix < ?) AND status = ? GROUP BY user_id [1601971012 1601971022 1] - 530.314µs
2020/10/06 11:27:14 ...m.io/xorm/core/db.go:154:QueryContext() [I] [SQL] SELECT user_id, count(*) AS count FROM notification WHERE user_id IN (SELECT user_id FROM notification WHERE updated_unix >= ? AND updated_unix < ?) AND status = ? GROUP BY user_id [1601971022 1601971032 1] - 509.501µs

What’s this and why is this query executed every 10 seconds? Is this normal?

It’s normal when a user stays in the notification interface.