On Tue, 22 Sep 2020 16:25:06 -0700
Jim Meyering <jim@meyering.net> wrote:

> Oh! Good timing. I was about to make a new snapshot.
> Do you happen to have a test case handy that demonstrates the failure?

I added test case to previous patch.

By the way, I found the following bug in making the test case, and it's
still left.

$ env LC_ALL=tr_TR.utf8 grep -Fio i in
Aborted (core dumped)

(gdb) bt
#0  0x0000003b8d032495 in raise () from /lib64/libc.so.6
#1  0x0000003b8d033c75 in abort () from /lib64/libc.so.6
#2  0x000000000040cdde in kwsinit (mb_trans=true) at searchutils.c:64
#3  0x0000000000409624 in Fcompile (pattern=0x23c1240 "i\n", size=1, ignored=0, exact=true) at kwsearch.c:56
#4  0x0000000000409378 in main (argc=4, argv=0x7ffe76048388) at grep.c:2977