Unnecessary glyph renaming

In [Names.glyphs.gz](https://github.com/user-attachments/files/28093281/Names.glyphs.gz), the following glyph names get unnecessarily renamed to production names:

* onesuperior
* twosuperior
* threesuperior
* apple

There's no need to convert these to production names, as they are part of the standard Mac glyph name list.

Start with the attached Names.glyphs.gz file as the reproduction case and trace the glyph-name renaming path in fontc. Verify how onesuperior, twosuperior, threesuperior, and apple are handled, then confirm that processing the file preserves those names instead of converting them to production names.

Written by the indexing model from the issue text.