test_system: avoid crash in 2015
test_system: avoid crash in 2015

AtonLerin/pymel,juggernate/pymel,leonsooi/pymel,david-lassonde-adsk/pymel,assumptionsoup/pymel,david-lassonde-adsk/pymel,leonsooi/pymel,assumptionsoup/pymel,juggernate/pymel,shrtcww/pymel,AtonLerin/pymel,shrtcww/pymel