Wildcard search for "Target Branch" filter on Pull Requests page

[Cabe Nicksic]

Until approximately last month, the filter for "Target Branch" on the Pull Requests page was a "includes" filter.  Recently it changed to an "exact match" filter.  I searched the internet and the Bitbucket Cloud public Jira board and I could not find anything about this change.  I used the "includes" filter extensively and I was wondering if there is a wildcard search option so I could get this functionality back.

My use case is that I named all branches starting with a prefix folder like bug or feature or prep or release.  For example, bug/2408.0.7 or release/2603.0.0 or feature/ABC-123.  I frequently search for all Pull Requests where the merge destination was a bug branch using the URL of https://bitbucket.org/mycompany/myrepo/pull-requests/?state=OPEN&at=bug.  Now this URL returns nothing.  I can still filter for exact branches like https://bitbucket.org/mycompany/myrepo/pull-requests/?state=OPEN&at=bug%2F2408.0.7 to see all Pull Requests where the merge destination is bug/2408.0.7 but I cannot figure out how to get my desired functionality to see all branches starting with bug.

I am hoping that there is a secret functionality to do this with a wildcard like https://bitbucket.org/mycompany/myrepo/pull-requests/?state=OPEN&at=bug%2F%25.  But I tried a few options and nothing seems to work.