Slack Notifications - seperate channels for certain trigger don't work

Hi,

when a slack notifications integration is added to a project, in https://gitlab.com/{namespace}/{project}/services/slack/edit one can set different channels for certain triggers (push, issue, etc).

As it seems, if you set a channel for "issue", but leave out "confidential issue", the setting from "issue" is copied to "confidential issue".

The same happens with "note" and "confidential note", respectively.