TextMesh Pro Specify culture for uppercasing

Throughout our game we use forced capitalization:



However all our text is written correctly with capitals where they need to be. When the system langauge on our target device is turkish it will uppercase any lower case dotted i characters into the uppercase dotted İ characters, which are not in our font atlas, as they are never used. Is there a way to specify the culture that text mesh pro uses when uppercasing?

Alternatively if the glyph table allowed us to map the İ character to the same texture space as the dotless I that would be great, but it doesn't seem to allow it.