When using the camel's jump ability whilst it is in a cobweb, the output log shows a message "Camel (vehicle of Shuddery) moved wrongly!"
1) Enable the output log
2) Ride a camel into a cobweb and use the jump ability
3) Notice the message in the log
Linked issues
Comments

Cannot be reproduced in 1.20-pre 6.

I still see this in 1.21
Can reproduce.