Why can I override a change over and over again, but it never saves?

Easiest to show this with a gif:

Can anyone tell me why this never saves? https://imgur.com/PMPlxeL
Also look at this. No change there that I can see anyway:

 

Were these changes made by a script? If they don't show the blue override bar at the left of the changed property, it won't save.

Whatever made the changes to a Prefab needs to call various SetDirty methods but also

UnityEditor.PrefabUtility.RecordPrefabInstancePropertyModifications(eachComponentYouTouch)

 

Well, this is a prefab from a library I'm using, and from the 2nd picture, I can't even see any changes, so I'm not sure how to answer your question.

 

The blue line along the left border of the text field which says "Input field" indicates that something set that field to a new value which needs to be saved. The new value may even be identical to the old value, it was just a change recorded as requiring a save.

 

Oh wow, that's really subtle and I never noticed it before. Is there anything I can do without a script to say, "Save everything?" My scene is the way I want it so a blanket save would be fine.