There are hinges on both sides of the Crimson and Warped door textures

This is the case for all doors, they use the same parent models.
The model specifically calls for that, and has always done that since doors' addition; so doesn't seem like a bug.

Thank you for your report!
However, we are already tracking this issue, and this report is a Duplicate of MC-106697, 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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