1. Create a test mission with a single player entity on the map with the following code as it's init.sqf:
```
//init.sqf
TEST_D = [group player];
TEST_E = createHashMapFromArray [["test", TEST_D]];
```
2. Export the mission to Singleplayer
3. Run the mission, save and load
4. Using the debug console or some other variable viewer to observe that the array TEST_D reads something like [B Alpha 1-1] while the HashMap TEST_E reads [["test",[<NULL-group>]]].