Lars Brubaker b94d0fce10 make sure we check mesh for null before using ... issue: MatterHackers/MCCentral#4447 Null reference exception in MeshWrapperObject3D when descendant has null Mesh		2018-11-01 15:02:57 -07:00
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agg-sharp@3be7c839b7	make sure we check mesh for null before using	2018-11-01 15:02:57 -07:00
MatterSlice@fafbca2512	Fixing material selector	2018-10-27 07:45:27 -07:00