Remove: U+F001 U+F002 ligature aliases from PUA

[Paul Sladen]

Issue coming out of bug #632267.

Please remove the aliasing of the glyphs for 'fi' and 'fl' from the PUA locations U+F001, U+F002.

The Unicode codepoints for these glyphs are at U+FB01, U+FB02 in the Alphabetic Presentation block and these should be used as the canonical (and only) glyph locations.

  http://www.unicode.org/charts/PDF/UFB00.pdf

[David Marshall (dave-daltonmaag)]

Most fonts include the ligatures at both positions - legacy and to-spec.
As the legacy positions are in the PUA, I don't anticipate any problems
including both.

Dave

[Mark Shuttleworth (sabdfl)]

Happy to mark this wontfix on the basis that there's common practice to
have them in.

 status wontfix

Mark

[Bruno Maag (bruno-daltonmaag)]

It's also worth remembering that these fonts *will* be used beyond Ubuntu. They are free and therefore Windows and Mac communities are going to access them with clear expections in regards to what fonts should support - and 'fi' 'fl' is definitely high on the list within the design community. Populating the fonts with different glyphs on these positions is support suicide and will make the fonts useless to a professional design community.

Whilst in the PUA, the glyphs have been on these positions for so long they are a de-facto standard. We also need to create the fonts to build compatibility with other fonts available on other systems, notably Arial, TNR, Verdana et al. So, we are happy that this is a "won't fix" position.