when transporting animals through the nether items inside of an item frame will duplicate when bringing the animals back to the overworld
To reproduce
1: Get some animals into the nether
2: bring them out somewhere else
3: item duplicated
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[media]

Thank you for your report!
However, this issue is a Duplicate of MC-138377 / MC-138919.
If you have additional information, please add it to that report.
Please search before reporting, as it's likely that one exists already.
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