1276680874
In the Action editor, show the number of users for each slot. - 1 user (the expected case): not shown - multiple users: number is shown between parentheses, f.e. `(3)` - none: shown as `(unassigned)` as I think that's clearer than `(0)`. This PR doesn't technically depend on !122500, but having that landed first will make testing this one quite a bit easier. Pull Request: https://projects.blender.org/blender/blender/pulls/124337