This is the start of the autogenerated code for the localized forms feature. It doesn’t seem right:
lookup locl_latn_0 {
script latn;
language AZE;
sub i by i;
language CRT;
sub i by i;
language KAZ;
sub i by i;
language TAT;
sub i by i;
language TRK;
sub i by i;
} locl_latn_0;
In older Glyphs builds, i had been substituted with idotaccent.