The test at channels/app/platform/web_conn_test.go was added by #35988
without a defer th.TearDown() call. Setup(t) creates a PlatformService
that opens its own SqlStore pool and runs morph migrations against the
shared temp database. Without TearDown, that pool stays alive until
TestMain exits, so the morph-held idle connections are still attached
to the database when MainHelper.Close runs DROP DATABASE. Postgres
refuses the drop with "is being accessed by other users" and the whole
package panics in teardown.
On master and release-11.4 and later, setupTestHelper registers the
shutdown via tb.Cleanup automatically, so the same test does not leak
there. release-10.11 still uses the manual TearDown pattern, which is
why the fix is scoped to this branch.
This test actually tested that there is no race
_if_ session pooling is there. But there is no session pooling
any more so this test is irrelevant.
https://mattermost.atlassian.net/browse/MM-61225
```release-note
NONE
```
It was a good decision in hindsight to keep the public module as 0.x
because this would have been a breaking change again.
https://mattermost.atlassian.net/browse/MM-53032
```release-note
Changed the Go module path from github.com/mattermost/mattermost-server/server/v8 to github.com/mattermost/mattermost/server/v8.
For the public facing module, it's path is also changed from github.com/mattermost/mattermost-server/server/public to github.com/mattermost/mattermost/server/public
```
