gnrc_sixlowpan_frag_rm_by_datagram() currently doesn't release the packet in the reassembly buffer entry removed, meaning it puts a leak into the packet buffer. This changes the tests to check for that error.
gnrc_sixlowpan_frag_rm_by_datagram() currently doesn't release the packet in the reassembly buffer entry removed, meaning it puts a leak into the packet buffer. This changes the tests to check for that error.