Enable prefixes for branch-to-issue relating

Problem to solve

Prefixed branch names (e.g. feature/1-add-some-feature) are not being related to GitLab issues.

Target audience

• Sasha, Software Developer, https://design.gitlab.com/research/personas#persona-sasha

Further details

I would be great to be able to define some prefixes which will be treated "transparently" for relating the issue to branch.

Proposal

Example: set "feature/" as one of prefixes and then branch "feature/1-add-new-feature/" will be linked by GitLab with issue #1 after push.

Documentation

What does success look like, and how can we measure that?

One is able to define a prefix for branch relating.

Links / references

• initial question issue-reproduce/related-branches#1 (comment 144122232)