Comment 2 for bug 855248

StacktraceTop:
 recalculate_size (renderer=0x1831a10) at gtksourcegutterrendererlines.c:74
 g_closure_invoke (closure=0x18ebe40, return_value=0x0, n_param_values=1, param_values=0x19a4fa0, invocation_hint=<optimized out>) at /build/buildd/glib2.0-2.29.92/./gobject/gclosure.c:774
 signal_emit_unlocked_R (node=<optimized out>, detail=0, instance=0x14711f0, emission_return=0x0, instance_and_params=0x19a4fa0) at /build/buildd/glib2.0-2.29.92/./gobject/gsignal.c:3272
 g_signal_emit_valist (instance=<optimized out>, signal_id=<optimized out>, detail=<optimized out>, var_args=0x7fff81f4a9f8) at /build/buildd/glib2.0-2.29.92/./gobject/gsignal.c:3003
 g_signal_emit (instance=<optimized out>, signal_id=<optimized out>, detail=<optimized out>) at /build/buildd/glib2.0-2.29.92/./gobject/gsignal.c:3060