Descriptive Problem Summary: When deleting all turfs from the map and compiling, Dream Maker crashes.

Numbered Steps to Reproduce Problem:
1) Download this sample project: http://files.byondhome.com/Higoten/Tests/ Find%20And%20Replace%20Turf%20Crash.zip (same as from ID:2833738).
2) Navigate to the map and press Ctrl + A to select all instances on the map.
3) Press delete to delete all objects from the map.
4) Compile the project. Observe a Dream Maker crash.

Expected Results: For Dream Maker to successfully compile the project.

Actual Results: Dream Maker crashes.

Does the problem occur:
Every time? Or how often? Only tested in the above scenario.
In other games? Untested.
In other user accounts? Untested.
On other computers? Untested.

When does the problem NOT occur? Unknown.

Workarounds: Unknown.