regression testing fail in 5.0-Current [locale]

Dear All,

When I run make in /usr/src/tools/regression/lib/libc/locale, I see this:

bash-2.05b# make
for p in test-mbrtowc    test-wcrtomb    test-mbsrtowcs  test-wcsrtombs  test-btowc      test-mbrlen     test-mbtowc     test-wctomb       test-mbstowcs   test-wcstombs   test-mblen; do /usr/src/tools/regression/lib/libc/locale/$p; done
PASS mbrtowc()
Assertion failed: (wcrtomb(NULL, UCHAR_MAX + 1, NULL) == 1), function main, file test-wcrtomb.c, line 65.
Abort trap (core dumped)
*** Error code 134

Stop in /usr/src/tools/regression/lib/libc/locale.

My FreeBSD-Current machine has done cvsup yesterday.

Regards,
Patrick