This test failed because TestWebHubCloseConnOnDBFail failed
and therefore the ChannelMembers table failed to be
renamed back.
We can see that in the logs:
```
teams","request_id":"sdxjxsd1wibd9mb7kc3ixj6g1w","ip_addr":"127.0.0.1","user_id":"afw9qqjh7pnddqakraxnjf1oph","method":"POST","user_id":"afw9qqjh7pnddqakraxnjf1oph","team_id":"bocubwmn4jyrmc1p9uxrc4pwfc","error":"JoinDefaultChannels: Unable to save direct channel., channel_members_save: Error 1146 (42S02): Table 'dbrt3jzcosj3nb8g6mgwmqyss9rh.ChannelMembers' doesn't exist"}
{"timestamp":"2024-11-10 13:52:34.260 Z","level":"error","msg":"Error while invalidating channel member cache","caller":"platform/web_hub.go:524","user_id":"afw9qqjh7pnddqakraxnjf1oph","error":"failed to find ChannelMembers, TeamScheme and ChannelScheme data: Error 1146 (42S02): Table 'dbrt3jzcosj3nb8g6mgwmqyss9rh.ChannelMembers' doesn't exist"}
{"timestamp":"2024-11-10 13:52:34.260 Z","level":"error","msg":"Error while invalidating channel member cache","caller":"platform/web_hub.go:524","user_id":"afw9qqjh7pnddqakraxnjf1oph","error":"failed to find ChannelMembers, TeamScheme and ChannelScheme data: Error 1146 (42S02): Table 'dbrt3jzcosj3nb8g6mgwmqyss9rh.ChannelMembers' doesn't exist"}
```
There is nothing wrong with this test. And while
we are here, we slightly improve the for-select loop
to exit faster.
https://mattermost.atlassian.net/browse/MM-61699
```release-note
NONE
```
bc22267829