GlyphBrowser drops some characters from the input

[typoman]

If you paste the following in the input:

(۰ - ۱ - ۲ - ۳ - ٤ - ٥ - ٦ - ٧ - ۸ - ۹)

Only the following will show up in the list to add to the font:

 ()-۰۱۲۳۸۹

I'm not sure where could be the origin of the issue yet. I reversed the last two previous commits and still the issue remained.

[LettError]

I think it only shows one of each, no repeating characters.

[typoman]

٤٥٦٧

These are dropped.