Confirming the excellent 52166 and wanted to be sure it's reopened and fixed 🙂
Jumping into the temporary hole on the main floor of my new house at level 88 works fine, safe to mining level 10. From the basement at 85 to 10 is fatal.
https://youtu.be/SMbzFgMnI48 https://bugs.mojang.com/browse/MC-52166
Thanks for your help - usually we see all comments so it's not necessary to create new tickets if you want old ones reopened.
I will update the older ticket with information provided here.
FYI: You don't need to link tickets, you can just write them out ("MC-52166") and they will be linked automatically.