Add instance (and or group) level setting for default branch names from issues
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### Proposal
At this time you have to set the "default branch names from issues" per project as described here: https://docs.gitlab.com/ee/user/project/repository/branches/#configure-default-pattern-for-branch-names-from-issues
It would be really nice to see this setting for the instance level or at least at the group level.
We are a premium user (self hosted).
~"feature::enhancement"
issue