More gdb fail

This set of commands, run in a fresh gdb instance and intended to set a conditional watchpoint, results in gdb segfaulting leaving an orphaned debuggee running:

(gdb) watch function::variable if function::variable == 0xff
(gdb) run

This set of commands, again in a fresh gdb instance, works:

(gdb) info address variable
(gdb) info address function::variable
(gdb) whatis variable
(gdb) whatis function::variable
(gdb) watch function::variable if function::variable == 0xff
(gdb) run

Discuss.