Unicode 7.0.0, (combining) Hamza Above, and normalization

[John Levine]

>I think this is an important insight and it may indeed be the case that
>normalization for Domain Name purposes and normalization for other purposes
>are not as aligned as we supposed. ...

If I may stick my semi-informed oar in, it seems to me that for
linguistic purposes, homographs are generally not an issue.  Remember
all those manual typewriters that didn't have digit 1 or 0 keys, so
you used letters l and O instead.

In our case, homographs are a big deal.  So can we just say that,
and decide to do whatever minimizes homograph issues even though
it's not the same as what would reflect linguistic usage?

R's,
John