Hi! First of all, thanks for constantly improving Rulesets features. Recently I discovered that we can enforce a certain merge strategy for each pull request. Problem is: at our company, our gitflow implementation requires different merge strategies depending on which type of branch we are merging from:

feature/** -> develop: Squash
backport/** -> develop: Merge

release/** -> master: Merge
hotfix/** -> master: Squash

So we really can't apply that ruleset in particular to our repositories.

It would be nice to include a "Source branch" section to Rulesets, similar to "Target branch" in order to fulfill that requirement