[c] Ported fix from f3dbc650f83ae698443bb34ad4034dad9946fa08

spine-c/spine-c/src/spine/MeshAttachment.c

@@ -81,7 +81,6 @@ void spMeshAttachment_computeWorldVertices (spMeshAttachment* self, spSlot* slot
 void spMeshAttachment_setParentMesh (spMeshAttachment* self, spMeshAttachment* parentMesh) {
 	CONST_CAST(spMeshAttachment*, self->parentMesh) = parentMesh;
 	if (parentMesh) {
-		self->super.worldVerticesLength = parentMesh->super.worldVerticesLength;
 
 		self->super.bones = parentMesh->super.bones;
 		self->super.bonesCount = parentMesh->super.bonesCount;
@@ -95,6 +94,8 @@ void spMeshAttachment_setParentMesh (spMeshAttachment* self, spMeshAttachment* p
 		self->trianglesCount = parentMesh->trianglesCount;
 
 		self->hullLength = parentMesh->hullLength;
+		
+		self->super.worldVerticesLength = parentMesh->super.worldVerticesLength;
 
 		self->edges = parentMesh->edges;
 		self->edgesCount = parentMesh->edgesCount;