Save Data Does Not Delete After Actors in Sequencer are Deleted and File Size Continues to Grow

Link that the user included with their Answer Hub ticket: https://answers.unrealengine.com/questions/713209/levels-uneditable-editor-stuck-with-updating-asset.html

The file size is not maintaining a 3KB size after all actors are deleted from it and instead accumulating data with every actor that is added and deleted. After about 5 to 10 actors are added and removed, the file size sits around 66 to 70 some odd KB.

1. Click on the Cinematics button in the top toolbar and choose "Create Level Sequence"
2. Click the Save button in Sequencer
3. Click the Magnifying glass button in Sequencer to navigate to the content browser
4. Right click on the asset and choose "Asset Actions->Export". Looking at the exported file in the text editor, there's no mention of tracks. That's expected.
5. Click on the Camera button in Sequencer. This creates a few tracks.
6. Save the sequence and export it again. Looking at the exported file in the text editor, there's some track information there. That's expected.
7. Select the Camera Cuts track, hit delete. Select the CineCameraActor track, hit delete.
8. Save the sequence and export it again. The exported file contains pretty much the same information. That's NOT expected and should be relatively blank (like step #4)

One odd thing to note is that if you quit, restart, and export the file again, the exported data is as expected. It doesn't contain the extra track information.

Level Sequence files are accumulating garbage even when contents are completely emptied.