Italic text not displayed when applying lower case font style

Steps to reproduce:

1. Add a TMP text object to scene
2. Set the font style to italic and lower case

Actual results: 

Some or all of the text is not in italic

Expected results: 

All text should be italic

Reproducible with versions: 6.1, 6.2

Not reproducible with versions: 6.0

Tested on (OS): Mac

Notes:

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