[MC-121610] Player auto-jumps in a specific block setup even when auto-jump is turned OFF

Can't explain with words, see attachment for video demonstration.

Bedrock is also affected, posted a separate issue for it.

Other Java versions might be affected.

100% reproduction rate.

Linked issues

pokechu22 2017-11-07T18:04:40Z

This is the same behavior as MC-44560/MC-8959, but this setup is pretty different from either of those. Would you say it's the same as one of them?

pajicadvance 2017-11-07T18:08:41Z

Seems like it. Didn't know the bug has been around for so long... I'm gonna keep this open for the sake of visibility.