Is it possible to change Stash behaviour of pull requests merging? PR from from_branch to master will perform merge, that produce commit with two parrents. Is it possible to specify some magic property in stash-config.properties file to replace merge command by 'merge --squash'. This will produce master branch with linear hstory from merge commits only.
But it also broke logic of stash of reachablity detection PR commits from target branch.