When we upgraded branch api plugin to version 2.1197.vfa_d0c47c267d from a half year old version the behavior for pull request title in multi branch pipeline jobs changed.

Previously PR-XXX was shown if multiBranchProjectDisplayNaming trait was not configured but now it seems to default to RAW_AND_OBJECT_DISPLAY_NAME.

There doesn't seem to be any way to get back the old behavior of only showing PR id.

Looking it at this recently merged pull request the change looks intentional:

https://github.com/jenkinsci/branch-api-plugin/pull/476

But it would be useful if there was an option to keep the old behavior as it makes it very hard to read the build queue (due to very long job names) and also build status sent to other integration applications (such as bitbucket branch source plugin) which also seems to send the display name which gets very messy.