Can we have Zuul support fast-forward merges? Merge commits are really
irritating for managing multi-branch (i.e. current Dist-Git package
maint) workflows.
Yes the "Always merge" option I suggest in the Pagure project settings is optional.
By default, internally, to prepare repositories to be tested, Zuul uses the git merge
strategy to integrate PRs on the target branches. Keeping the commit integration
strategy similar between Zuul and Pagure project is recommended but apart for
specific jobs/use-cases having them different won't cause any issues.