I found another. Right after the bug with doors and TNT, there's yet another. In a survival world, place a door, then break it with whatever you can. It may or may not drop two doors (there was a time when no door was dropped after I broke it), but it will never drop just one.
Linked issues
Comments 1
Duplicate of MCPE-23, please use the search function to see if your bug has already been submitted. Currently over 55% of tickets are being closed as duplicate.