[Hammer] Entity-only recompile always destroys baked lighting

[chrisspieler]

Describe the bug

When compiling a map in Hammer using the Only Entities preset, lightmaps and light probe data will be removed from the map regardless of whether anything that would affect this data was actually changed.

To Reproduce

1. Open the attached project in the s&box editor
2. Open maps/ducc_room.scene
3. See that the map loaded by the MapInstance has soft shadows from the lightmap, and accurate ambient lighting on its GameObjects
4. Open maps/ducc_room.vmap in Hammer
5. Compile the map using the Only Entities preset
6. Switch back to the s&box editor window
7. See that the map has hard shadows from a dynamic sun, and GameObjects from the map no longer receive any ambient lighting

Expected behavior

Lighting and light probe data should not be lost unless a change was made to static parts of the map that would require this data to be recalculated.

Media/Files

repro.zip

Additional context

No response