Switching back & forth the up direction f the light anchor when the elevation is a multiple of 90 looses the settings

See attached video.

Repro steps:

• Add a light anchor component to a light
• Optionally, assign an object to the Anchor Position Override
• Set any value to Orbit and Roll, but use 90/180/-90 for Elevation
• Change up direction from world to local and back to world

Result:

• The orientation settings are lost and revert to 0

Expected:

• Conversion of the settings is done properly like with other elevation values

Notes: Also works when changing the up direction from local -> world -> local

Reproduces with:
2021.2.11f1, trunk