Hi,
Edit summary can't be longer than 255 bytes. Bug
4715<https://bugzilla.wikimedia.org/show_bug.cgi?id=4715> which
wants to support longer summary won't be patched in a short period, or
won't fix. Bug 40035
<https://bugzilla.wikimedia.org/show_bug.cgi?id=40035> shows
the counter by exposing how much bytes left directly to the user. But it
will still confuse the user in other languages.
I think a indicator which contains four gray lines will help. With the
content of edit summary increasing, the indicator decrease the number of
lines. When edit summary takes up more than 255 bytes, the indicator
increases red lines for warning and the save button is disabled instead of
wrap content of the edit summary.
In this way, the indicator works consistently with any characters at least.
--
Regards,
Erick Guan/管啸 (fantasticfears)