Comment 2 for bug 348210

I'm having the same exact problem with 0.46. Haven't tried the latest nightly build.

gdb backtrace:

a = | 2.82391 0 |, b = | 2.82391 0 |
    | 0 2.82391 | | 0 2.82391 |
    | nan nan | | nan nan |

Program received signal SIGABRT, Aborted.
[Switching to Thread 0x7ff0153e2790 (LWP 20423)]
0x00007ff00db0efb5 in raise () from /lib/libc.so.6

#0 0x00007ff00db0efb5 in raise () from /lib/libc.so.6
#1 0x00007ff00db10bc3 in abort () from /lib/libc.so.6
#2 0x00000000007bd7ae in ?? ()
#3 0x00000000007bcd3e in ?? ()
#4 0x00000000007c40e6 in ?? ()
#5 0x000000000051deff in ?? ()
#6 0x000000000051f9e2 in ?? ()
#7 0x000000000076ef60 in ?? ()
#8 0x00007ff01153327d in g_closure_invoke ()
   from /usr/lib/libgobject-2.0.so.0
#9 0x00007ff011548e3b in ?? () from /usr/lib/libgobject-2.0.so.0
#10 0x00007ff01154a2bd in g_signal_emit_valist ()
   from /usr/lib/libgobject-2.0.so.0
#11 0x00007ff013129f65 in gtk_signal_emit ()
   from /usr/lib/libgtk-x11-2.0.so.0
#12 0x0000000000750c30 in ?? ()
#13 0x0000000000752658 in ?? ()
#14 0x00007ff012fc0df8 in ?? () from /usr/lib/libgtk-x11-2.0.so.0
#15 0x00007ff01153327d in g_closure_invoke ()
   from /usr/lib/libgobject-2.0.so.0
#16 0x00007ff011548b1e in ?? () from /usr/lib/libgobject-2.0.so.0
#17 0x00007ff01154a2bd in g_signal_emit_valist ()
   from /usr/lib/libgobject-2.0.so.0
#18 0x00007ff01154a953 in g_signal_emit ()
   from /usr/lib/libgobject-2.0.so.0
#19 0x00007ff0130c909e in ?? () from /usr/lib/libgtk-x11-2.0.so.0
#20 0x00007ff012fb9693 in gtk_propagate_event ()
   from /usr/lib/libgtk-x11-2.0.so.0
#21 0x00007ff012fba7b3 in gtk_main_do_event ()
   from /usr/lib/libgtk-x11-2.0.so.0
#22 0x00007ff012c33f3c in ?? () from /usr/lib/libgdk-x11-2.0.so.0