`IsTrue`/`IsFalse` binds `null` instead of the actual value

boolen query method working in 1.4.1, but does not in 1.4.2

After upgrading to spring boot 2.6.4, the query method for boolean does not work as desired.
I'm curious if it's a bug or something I missed.
I'll link the my repo.

https://github.com/underbell/demo_boot_2.6.4