Checkmk Werk 15586: host_tag: update multiple tag choices with rule dependency

ID: 15586 Title: host_tag: update multiple tag choices with rule dependency Component: Setup Level: 1 Class: Bug fix Version: 2.3.0b1 Prior to this werk, removing multiple tag choices with at least one tag choice dependency in a rule caused a crash in both the user interface as well as the REST API. This werk fixes this error.