• Gogs version (or commit ref): 2bec8a4
• Git version: 2.1.4
• Operating system: Linux
• Database (use [x]):
  • PostgreSQL
  • MySQL
  • SQLite
• Can you reproduce the bug at https://try.gogs.io:
  • Yes (provide example URL)
  • No
  • Not relevant
• Log gist:
  [T] mp wtf [5]: UpdateIssueUsersByMentions: database table is locked

Description

If a comment tags a name (@stroucki), emails do not send out because of the "database table is locked" error above. This is within function MailParticipants in models/issue_comment.go after the line
mentions := markdown.FindAllMentions(cmt.Content)

Note that the error never gets reported; I made it visible by inserting a log.Trace.

This fails for extant users; if a random text string is tagged, a mail is sent.