clang Failed assertion after the clang 3.2 RELEASE import

for whatever reason, I get a Failed assertion error if I add a user to
the wheel group... but if I do not add to the wheel group all is
fine..

#
# uname -a
FreeBSD MiniBSD 10.0-CURRENT FreeBSD 10.0-CURRENT #1 r244639M: Sun Dec
23 12:09:39 EST 2012     root_at_MiniBSD:/usr/obj/usr/src/sys/GENERIC
amd64
#

Lock out the account after creation? [no]:
Username   : dfourman
Password   : *****
Full Name  : Dave Fourman
Uid        : 1002
Class      :
Groups     : dfourman wheel
Home       : /home/dfourman
Home Mode  :
Shell      : /bin/sh
Locked     : no
OK? (yes/no): yes
<jemalloc>: /usr/src/lib/libc/../../contrib/jemalloc/include/jemalloc/internal/arena.h:698:
Failed assertion: "((uintptr_t)ptr - ((uintptr_t)run +
(uintptr_t)bin_info->reg0_offset)) % bin_info->reg_interval == 0"
Abort trap
adduser: ERROR: There was an error adding user (dfourman).
Add another user? (yes/no): yes



is there a way to get around this until this bug is fixed?
-- 

Sam Fourman Jr.