Event scripts dropping assignment during compile

[danenders]

When compiling after making changes to a map, events will randomly unassign their scripts and generate the following error:

data/maps/NewMauville_Inside/events.inc: Assembler messages: data/maps/NewMauville_Inside/events.inc:8: Error: Missing value for required parameter script' of macro object_event' make: [build/emerald/data/map_events.o] Error 1

The script that is unassigned is not always the same, and does not always get dropped from an event that has been moved/newly created/or edited in any way.

This has only occurred so far when viewing maps sorted by layout, but I haven't challenged this by making extensive changes on other maps to see if it occurs elsewhere. This round of edits have also been my most extensive.

Running version 4.5.0 OS: Mojave 10.14.6

[GriffinRichards]

Duplicate of #380

~~I'm still not sure what the conditions for this are. I imagine I don't make edits on the same scale as people actively working on larger projects, and as a result I haven't yet reproduced it personally.~~ See linked issue