well I'd actually found more than 5 bugs when I was playing with 1.9 tnt cannons within 10 mins... =_=

so yeah the first bug, I was making a super tnt cannon ( doesn't matter which I guess) with a repeater attaching to it. I put tnts in all 9 slots of the dispenser, I turn on the repeat and the tnts fire out like crazy, but after I turned off the repeater, I open the dispenser, there were still tnts in all slots, but lesser ( normal ), and then I tried to organized the dispenser again to count how many tnts are there by double clicking some tnt, ( when you double click some item in your inventory, you can automatically group up the items which are not stacked into one stack. Things started to get weird by then, whenever I put down a dispenser, they automatically filled up with tnt... weird but true, pls fix it before someone uses this glitch to duplicate items, thx, btw Imma you guys big fan, I know you're all working hard to develop new stuff, and I appreciate alot, thx!