If there is whitespace at the beginning of a build line the file won't open and instead attempt to create a new file. The error can be recreated when building from munit.
# fails to open on double click
source/Main.hx:141: characters 10-14 : Unknown identifier : foo
# works
source/Main.hx:166: characters 16-21 : Unknown identifier : bar
If there is whitespace at the beginning of a build line the file won't open and instead attempt to create a new file. The error can be recreated when building from munit.