d3b84d73fd
When a subvolume is transferred via btrfs send/receive the resulting image contains the received_uuid property set. This property is required to do incremental snapshots. A downside though is that once the received_uuid property is set, it is not possible to make the image readwrite again without the force (-f) flag, and in such case the received_uuid property is lost. Since we know the images are only set to rw for the duration of the move, it is safe to set the flag forcefully and then in a future commit add the received_uuid property by force. Signed-off-by: Maximiliano Sandoval <m.sandoval@proxmox.com>