[BUG]: incompatibility of py::native_enum in 3.x with py::arg_v() default values

[HMRWork42]

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What version (or hash if on master) of pybind11 are you using?

3.0.2

Problem description

I am having some issues with upgrading to 3.0.2, and it seems to point towards the deprecated pybind11::enum being a contributing factor, so I tried switching to pybind11::native_enum. Most conversion works (and with a bit of additional effort removing py::arithmetic()). But there seems to be a registration problem when used together with py::arg_v() to indicate a default value.

Reproducible example code

py::native_enum<GrRenderable>(m, "GrRenderable", "enum.Enum")
    .value("kNo", GrRenderable::kNo)
    .value("kYes", GrRenderable::kYes)
    .export_values();

...
py::class_<GrRecordingContext, sk_sp<GrRecordingContext>, GrImageContext>(
    m, "GrRecordingContext")
    .def("defaultBackendFormat", &GrRecordingContext::defaultBackendFormat,
        py::arg("colorType"),
        py::arg_v("renderable", GrRenderable::kNo, "skia.GrRenderable.kNo"));
...

Is this a regression? Put the last known working version here if it is.

native_enum is new in 3.x

[HMRWork42]

The snipplet compiles okay, but at run/load time, generates a import error that looks like this:

ImportError: arg(): could not convert default argument 'renderable: skgpu::Renderable' in method '<class 'skia.GrRecordingContext'>.defaultBackendFormat' into a Python object (type not registered yet?)

@HinTak (cc'ing my other account)