Stack of zero inc sacs caught from fishing

I caught an ink sac via fishing.

When I went to put it in the chest, the icon for the ink sac was dark (the icon was like when an item is in the furnace).

When I clicked on the ink sac, it then turned into this 99+ quantity ink sac (the icon turns into the normal ink sac icon) and it seems to be an infinite supply of ink sac.

Phone: O+ 8.37 Android
OS: 4.2.2 Jellybean
MCPE ver: Alpha 0.11.1

Note: 0.11.1 wasn't on the selection