Like many other crops, sugar cane is supposed to gain age. Sugar cane in particular over the cause of 16 random ticks. on the 16th tick it should grow 1 taller and set its age back to 0. However, it is always 0 and at some point it just grows.
This can be replicated by planting a sugarcane, then look at the age tag on the F3 screen.
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Affects 1.14.3 Pre-Release 1 and 1.14.3 Pre-Release 2.
@unknown, as you're reporter of the ticket, you can add affected versions yourself and don't need to comment.
Thank you for your report!
We're actually already tracking this issue in MC-70127, so I resolved and linked this ticket as a duplicate.
However, that ticket has already been resolved. That means that this is not considered a bug and won't be fixed. Please do not leave a comment on the linked ticket.
If you haven't already, you might like to make use of the search feature in the future to see if the issue has already been reported.
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Can confirm for 1.14.2 Pre-Release 3