12e626f31f
This operator is very similar to the existing "Join as Shapes" operator, which updates or adds shape key array values with the positions of objects with the same name, but instead of creating new shape keys, it just updates existing ones. The new operator is called "Update from Objects" in the UI. Internally, some logic was moved to a poll function shared between the two operators, and a new argument for whether to ensure keys exist was added to their shared implementation. Part of #135095. Pull Request: https://projects.blender.org/blender/blender/pulls/136853