mv in 7.0 fails when mv partition_a/dir_a to partition_b/dir_b

mv /root/XXX /home/root/YYY

files are copied over but are not removed from dir_a directory.

root:{/root}# mv updates/ /home/root/RPMS/7.0-updates
mv: basename.c:67: base_name: Assertion `all_slashes || *(p - 1) != '/''
failed.
Aborted (core dumped)

----

root:{/root}# gdb /bin/mv core
GNU gdb 5.0
Copyright 2000 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB.  Type "show warranty" for details.
This GDB was configured as "i386-redhat-linux"...(no debugging symbols
found)...
Core was generated by `mv -i updates/ /home/root/RPMS/7.0-updates'.
Program terminated with signal 6, Aborted.
Reading symbols from /lib/libc.so.6...done.
Loaded symbols for /lib/libc.so.6
Reading symbols from /lib/ld-linux.so.2...done.
Loaded symbols for /lib/ld-linux.so.2
#0  0x4004c8c1 in __kill () from /lib/libc.so.6
(gdb) where
#0  0x4004c8c1 in __kill () from /lib/libc.so.6
#1  0x4004c63d in raise (sig=6) at ../sysdeps/posix/raise.c:27
#2  0x4004dcc4 in abort () at ../sysdeps/generic/abort.c:88
#3  0x40046011 in __assert_fail (assertion=0x8051680 "all_slashes || *(p -
1) != '/'", file=0x805166a "basename.c",
    line=67, function=0x8051660 "base_name") at assert.c:60
#4  0x804d6db in strcpy () at ../sysdeps/generic/strcpy.c:31
#5  0x804cee0 in strcpy () at ../sysdeps/generic/strcpy.c:31
#6  0x80498c7 in strcpy () at ../sysdeps/generic/strcpy.c:31
#7  0x8049a4e in strcpy () at ../sysdeps/generic/strcpy.c:31
#8  0x8049eff in strcpy () at ../sysdeps/generic/strcpy.c:31
#9  0x4003ba2c in __libc_start_main (main=0x8049b30 <strcpy+1404>, argc=4,
ubp_av=0xbffff7b4, init=0x8049064,
    fini=0x804fd1c <strcpy+26472>, rtld_fini=0x4000d3c8 <_dl_fini>,
stack_end=0xbffff7ac)
    at ../sysdeps/generic/libc-start.c:111


root:{/root}# rpm -q fileutils
fileutils-4.0x-3