merge queue fails when it reaches PR from fork, can't push lock updates there

[mordamax]

From Matrix

Oliver Tale-Yazdi.unwrap():
Maybe we can add a "permission check" as part of the companion MR, sometimes it dies when trying to merge a companion since the bot cannot push to the branch. Exampls https://github.com/paritytech/cumulus/pull/1613/#issuecomment-1257677400 

Mak
like - when you type bot merge from substrate, it will check if polkadot & cumulus MRs are pushable?

Oliver Tale-Yazdi.unwrap()
Maybe even when it realizes that you linked a companion. But yea; checking before merging upstream is the important part.

One of the solutions could be - when someone write "bot merge", there are list of checks that bot does, to make sure that all companions are mergeable - that could be a place to also check if companion PRs are pushable