Graphene segmentation supervoxel loading and segment properties

Graphene segmentation layers will by default load root ids when a supervoxel id is selected, even when sv ids are entered directly or through segment properties. This behavior is exactly correct, and depends on the "graph" property being

However, when this happens through segment properties, the associated root id does not inherit the properties from the supervoxel in the UI. This would be extremely convenient, as the current behavior lets one create a static segment property using supervoxels but would pull up the most recent state of the segmentation (rather than being stuck with a fixed segment id).