10a93aebf1
This addresses #95855 by prioritizing the selection of keys in the following order: 1. Keys on the active curve. 2. Keys on any selected curve. 3. Other keys. Additionally, this fixes an as-yet unreported issue where you couldn't select the main vertex of a key if it was overlapping with another one and one or more of its handle vertices were already selected. This was due to the selection status of a key and its handles not being properly considered separately. Pull Request: https://projects.blender.org/blender/blender/pulls/107223