route.entity can not get entity class in Rails 7.1

[hsw15192617273]

I use grape gem version is that:

grape (~> 1.8)
grape-entity (~> 1.0)
grape-middleware-logger (~> 1.12)
grape-swagger (~> 1.6)
grape-swagger-entity (~> 0.5)

When I use rails 7.1.0, the output of route.entity in grape is #<Class:0x000000010bb66910>.

However, when using rails 7.0.8, the output of route.entity becomes the normal V1::Entities::Dev::Haha.

All other code is the same except for the change in Rails version.

This leads to an incorrect entity name in the definitions when generating swagger json.
I'm not sure if this is an issue with grape or grape-entity, so I've posted the issue here.