In version 1.5.2 and before, it was possible to harvest crops planted on farmland (wheat, carrots, potatoes, etc.) by blocking all light sources. This would cause all of the crops to pop off at once as soon as any one of them received an update. In 1.6.1 and 1.6.2 pre-release, they pop off one at a time.
A crop popping off no longer triggers its neighbors to update and pop as well. I do not believe this is/should be the intended behavior because the crops still pop off with a redstone update. Upon testing with a BUD, it appears that the crops popping off due to insufficient light does not create an update at all.
Related issues
duplicates
Comments
Works as intended? Please tell me you at least checked the video... The crops are not causing a block update AT ALL when they pop off (unless you punch them), which means sand, gravel, anvils, or carpets placed on top of the crop will be left floating when the crop 'pops'. The dirt can then be removed to create floating blocks anywhere you like. Now that I look for that bug, I see it's posted and confirmed already MC-19886 but that is just a side effect of the broken crop behavior.
Could a moderator reopen this issue please ? Or should I make a new post ?
Since MC-19886 was fixed in 14w06b and this bug is still here, it was wrongly considered as a duplicate.
I came here to report the same thing, so confirmed.