Free capture net glitch

(IGN: _BananaShrimp)
This happened twice so far with two of the new vote mobs.
The first time, I found a muddy crab in a mangrove swamp and right-clicked it with a bucket. Instead of receiving the 'bucket of crab' item, I was given a one-use capture net with the crab inside. This only happened during the first attempt however, and afterwards I was able to collect crabs in buckets just fine.

The second time, I found an armadillo and tried feeding it a spider eye. I once again received a one-use capture net containing the armadillo.