If you place a bary bush on a grass block and hold punsh and relise before the block is broken. It will make it so when you destoryd the bary bush and relised the break texure will stay. It stays even if you reload chunks with F3+A. It says If you relog as well.
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Duplicate of MC-157404
Dupe of MC-157404
It is not unique to sweet berry bushes. Any block the breaks instantly and has no collision box will cause this.