[1261.1] Flight size working strangely

[pgatcomb]

This is an interesting one. I created a mission where a group of 88 bombers with flight size set to 4 generated a series of missions and flight groups that were now 11 in size. I set the flight size to 11, and got very strange sizes ranging from 11-13.

The two attached files are:
testa2 -> Mission ready to execute, you can clearly see the flight size weirdness
autosave -> Mission saved immediately after the bombs dropped