Adding GuidComponent to instance and then to prefab asset makes reveting the instance version lose its guids.

[EmreDogann]

Adding a GuidComponent to a prefab instance, and then adding a GuidComponent to the prefab asset, means the GuidComponent on the instance cannot be applied and so must be reverted. But reverting in this case will cause new guids to be assigned to the guid component on the prefab instance.

Video for reference:

Unity_I0Mtmv21ss.mp4