Slack service push_channels changed to #general after upgrade to 8.15.0 RC3
Summary
We have Slack notification services configured for a GitLab CE and EE projects (on GitLab.com). After the upgrade to 8.15.0 RC3 all services now use the #general push channel and any custom settings have been removed.
Steps to reproduce
- Configure a project Slack notification service with a custom
push_channel - Upgrade to 8.15.0 RC3
Expected behavior
Slack push channel does not change value.
Actual behavior
Slack push channel values are all using the default #general placeholder value