I made a release group in error due to the original was hidden in “Show Official Release Group”
There is a release in the new release group that needs removed along with the new release group.
Release Group made when not needed
Sorry about the error as my fix made more work.
Accidental release group? Just merge into the correct one.
Accidental new release group spotted within 24 hours? Edit the Release and reassign to the correct Release Group. This now makes your accident empty and still needs a merge, but at least your new Release is in the correct Release Group.