Selecting Don't Save when launching onto platform still gives the impression that assets were saved

If the user selects Don't Save when launching on to a platform, the dirtied assets appear as saved in the editor (no asterisks next to map names or asset thumbnails).

This can be confusing, because while the unsaved asset changes will persist to the Launched instance, if you reopen the editor (or map), they will not.

1. Open QAGame in editor.
2. Open QA-Promotion.
3. Edit the map in some way (like moving the static mesh actor).
4. Without saving, click the dropdown next to Launch and select your Windows platform.
5. When prompted to save, select Don't Save.

RESULT

When the assets are being processed, the map appears to have been saved (the asterisk next to its name on the tab goes away).

EXPECTED

For the unsaved content to appear as unsaved.