The PATCH if issue & pull request switched to use the service
functions instead. However, the service function changing the state is
not idempotent. Instead of doing nothing which changing from open to
open or close to close, it will fail with an error like:
Issue [2472] 0 was already closed
Regression of: 6a4bc0289d
Fixes: https://codeberg.org/forgejo/forgejo/issues/4686
(cherry picked from commit e9e3b8c0f3)
9f1302f685