If you break a double chest while closing the chest you are left with will be in the closing animation.
If you place another chest beside it will close and the glitch cannot be done ever again even if you make a new world.
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Thank you for your report!
We're actually already tracking this issue at MCPE-96089, so I will resolve and link this ticket as a duplicate.
If you would like to add a vote and any extra information to the main ticket it would be appreciated.
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