i was mining in a cave when i placed a torch on the block i was mining. then the bug happened. the bug is that while you are mining a block, place a torch on it. and when you break the torch, the mining state is still there. it's kinda weird to watch. thet it for yourself.
(this bug needs timing)
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duplicates 1
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This actually appears to be a duplicate of MC-157404, which hasn't yet been resolved. If you feel that this issue is affecting you, feel free to vote for the duplicated ticket, to give Mojang a basic idea of how many people are impacted by the problem. Just to further inform you, this will not determine how quickly the bug gets handled or fixed. Like I said earlier, it just gives the team a general understanding.
Can reproduce