This bug exists in current git HEAD and I also reproduced it exactly in my 2011-05-13 build. In my 2011-02-21T023427+0000 git HEAD build, it causes a lockup of pcb rather than an immediate segfault, but the line still disappears when 'm' is hit and the optimize rats causes the lockup.
Verified lockup or crash in git HEAD all the way back to 2010-01-01 and in the 20091103 build I have. Ubuntu 11.04 (Natty)'s pcb package, version 20100929-2, also shows the bug (lockup on 'o').
This bug exists in current git HEAD and I also reproduced it exactly in my 2011-05-13 build. In my 2011-02- 21T023427+ 0000 git HEAD build, it causes a lockup of pcb rather than an immediate segfault, but the line still disappears when 'm' is hit and the optimize rats causes the lockup.
Verified lockup or crash in git HEAD all the way back to 2010-01-01 and in the 20091103 build I have. Ubuntu 11.04 (Natty)'s pcb package, version 20100929-2, also shows the bug (lockup on 'o').