In Rhino 6,
On blocks (not in block edit mode)
MoveEdge converts blocks to regular polysurfaces silently, Is this the intended behaviour? would it not be better to have a warning informing the user that it will no longer be a block, with options to cancel or convert to polysrf?
For reference, in rhino 5
MoveEdge would not allow block sub elements to be selected
It can result in unpredictable behaviour: https://global.discourse-cdn.com/mcneel/uploads/default/original/3X/d/5/d5f89e3f8e1bb79e5d5f4c2a508954de617f5855.mp4
In the clip I
blockedit the three blocks on the left, then exit the block edit and
moveFace the one of the blocks in a selection with other objects, then I blockedit the block again to demonstrate the movedfaced block has been broken.