Can no longer place a banner below a trapdoor.

The banner hitbox has been changed by adding the trapdoor hitbox to the top of the banner. This way I can no longer insert a trapdoor together with a banner. Can you please put the old banner hitbox back or fix this problem? Thanks for your attention. If you have time, could you reply to this message for clarification? sorry goodbye.
(I'm Italian I used Google Translator for this message)