Create pull-request event send webhook twice

[matrozov]

• Gitea version (or commit ref): 1.11.0+dev-333-g7b7d382b8
• Git version: not needed
• Operating system: not needed
• Database (use [x]):
  • PostgreSQL
  • MySQL
  • MSSQL
  • SQLite
• Can you reproduce the bug at https://try.gitea.io:
  • Yes (https://try.gitea.io/o.matrozov/test/settings/hooks/280)
  • No
  • Not relevant
• Log gist:

Description

When creating a pull request, a double webhook is sent.

Screenshots

[jolheiser]

Fixed in #9375