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4b159230d9
Attempting to mix py::module_local and non-module_local classes results in some unexpected/undesirable behaviour: - if a class is registered non-local by some other module, a later attempt to register it locally fails. It doesn't need to: it is perfectly acceptable for the local registration to simply override the external global registration. - going the other way (i.e. module `A` registers a type `T` locally, then `B` registers the same type `T` globally) causes a more serious issue: `A.T`'s constructors no longer work because the `self` argument gets converted to a `B.T`, which then fails to resolve. Changing the cast precedence to prefer local over global fixes this and makes it work more consistently, regardless of module load order.
