#253 G5.1 Spline motion fails when I 0 and no x delta

[TBA]

Toolpath preview displays correctly, but motion incomplete on G5.1 of following code (when I 0 and no change in X).

G00 X 2 Y 1
G01 X 1 Y 1 F20
G5.1 Y 0 I0 J-0.1

EMC2/AXIS version 2.4.6
Description: Ubuntu 10.04.2 LTS
Release: 10.04
Codename: lucid

[TBA]

This bug may be related to bug 3308212.