Also tried to reproduced on Ubuntu 13.04 (VM, 64bit, host: OS X 10.7.5) with inkscape-trunk PPA r12916 and r12954: I managed to reproduce it once with r12916 (out of roughly 10 attempts), and not at all with r12954.
Also tried to reproduced on Ubuntu 13.04 (VM, 64bit, host: OS X 10.7.5) with inkscape-trunk PPA r12916 and r12954:
I managed to reproduce it once with r12916 (out of roughly 10 attempts), and not at all with r12954.