`IntoParams` does not support types with generics

[Paul-E]

On version 5.5, the following example

#[derive(utoipa::ToSchema, utoipa::IntoParams)]
#[into_params(parameter_in = Query)]
struct Foo<R: utoipa::ToSchema> {
    x: Option<R>,
}

produces the compiler error:

error[E0425]: cannot find value `generics` in this scope
 --> src/main.rs:8:15
  |
8 |     x: Option<R>,
  |               ^ not found in this scope

I'm not sure if this is intended and generics are not supported, or if this is a bug.