I don't know for sure if it's a mistake or a trick of the game. If over the piston (without difference sticky or simple) put 2 Redstone blocks, and break them then the piston will remain in the activated state
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Thank you for your report!
However, we are already tracking this issue, and this report is a Duplicate of MC-108, which has been marked as Works as Intended - this is an intentional game feature. If you have a different opinion, please visit the Feedback website.
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