Pull request merge status could be ONLY the Pull request jenkins job build status?

[Erwan QUEINNEC]

When I build a pull request, jenkins 2 plugin create 2 jobs (branch and PR). 

I would like to grant access to merge only if this PR build succeed.

I found the option 'Requires a minimum number of successful builds'. Stops pull requests from being merged if they have any unsuccessful builds. Even if I set number to 1 Bitbucket check ALL builds. I have sometimes the pull request succeed, 2 other builds succeed and 1 build failed. And do not want to block pull request at this time.

If I set this number to 0, Bitbucket do not check the pull request build status

[Erwan QUEINNEC]

I'm using the Bitbucket Team/Project multibranch plugin in jenkins. This plugin track pull requests in all repositories and do not seem compatible with stash or maybe my requirement is too specific