RF_WasLoaded is set to False in PIE for instances of a Blueprint if the Blueprint is recompiled

The RF_WasLoaded flag is set to false for Blueprint instances in PIE if the Blueprint is edited and compiled. This is fixed by saving the level which is a simple workaround but this should be needed.

Regression?: No
This occurs in 4.21

1. Download the attached project.
2. Compile and open the project.
3. Press play.
4. Note that the Print String says that RF_WasLoaded is "True".
5. Open the MyActorBP Blueprint.
6. Change the scale or any other properties on the root component.
7. Compile the Blueprint.
8. Press Play.
   Result: The RF_WasLoaded flag is now false. It can be restored to true by saving the map.
   Expected: The RF_WasLoaded flag is still true.