noticed when breaking leaves/logs in a tree over head, you can jump, hit a leaf block a few times, then jump again, hit it again, and continue until the block is broken even though it has left your reach distance several times as if the block is retaining its damage value. If you wait long enough, it resets as it should.

May be a duplicate but I had not seen it reported for this version. may be fixed in pre-2 but I have not checked.