[bug #63332] recent fallbacks.tmac change degrades ASCII output

[Dave]

Follow-up Comment #7, bug #63332 (project groff):

I'll reply more fully later, but I want to address one point now:

[comment #5 comment #5:]
> > This means the other "t" conditionals in fallbacks.tmac also
> > don't do what was intended.
> 
> I don't think that's true.

It's easy enough to demonstrate: pick a definition where fallbacks.tmac makes
a distinction based on the n/t mode, such as:

.ie t .fchar \[u2012] \v'-.3m'\l'\w"\0"u\[ru]'\v'+.3m'\" figure dash
.el   .fchar \[u2012] \-


$ echo '3\[u2012]4' | groff -Tascii | cat -s
3_4


Were this working as designed, we'd see a hyphen in the output rather than an
underscore.


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