bug#56237: 29.0.50; delete-forward-char fails to delete character

[Eli Zaretskii]

> From: Visuwesh <visuweshm@gmail.com>
> Cc: 56237@debbugs.gnu.org,  56237-done@debbugs.gnu.org
> Date: Sat, 16 Jul 2022 18:20:46 +0530
> 
> This command somehow to have been regressed.  With the HEAD at
> 0190dff96a, the command works perfectly fine but with current master, it
> fails to delete by entire clusters: it behaves identical to delete-char.
> 
> With the point being |,
> 
>     |ரு
> 
> after <Delete>, becomes
> 
>     |ு
> 
> instead of |.
> 
> Can you please take a look, Eli?

Thanks, now fixed.

Please in the future always open a new bug instead of reopening an old
one, because regression is almost never due to the same problem that
was originally fixed, and our bugs should be per programming error,
not per external manifestations of that error.