Pressing the Add Key button in the details panel does not work with multiple actors selected

It looks like adding keys through the details panel only works correctly for the first selected actor in the world outliner.

WORKAROUND

Auto keying seems to pick up the multiple edits as expected

1. Create a sequence
2. Add two spawnable spotlights to the sequence
3. Select the two spotlights in the world outliner
4. In the details panel edit the intensity of the spotlights
5. Click the add key button next to intensity in the details panel

RESULT

The first spotlight will have the expect value, and the second one will not