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<div>A font may well contain variant glyphs for a character.
In order to justify encoding an o with an e inside, I think
you would need present evidence of texts showing 1) usage
where it causes a difference in meaning with respect to ö,
or 2) usage that is independent of the use of the letter ö
in different human languages, such as use in some special
phonetic or technical meaning.<br>
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One thing I don't think I've seen mentioned yet is that ö is already
a unification of O-diaeresis and O-umlaut, and while the glyph
variant under discussion is a valid variant of O-umlaut (related to
oͤ, œ and ø as other variants, where form acceptability and form
preference varies between languages that use O-umlaut), it is not a
valid variant of O-diaeresis.<br>
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—Har.<br>
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