Duplicate symbols when linking a static library containing Objective-C++

ld_prime of Xcode 15 produces duplicate symbols when linking a static library containing Objective-C++ object in case using the flags -ObjC and -Wl,force_load.

// foo.h

#pragma once

int Inc(int i);

// foo.mm

#include "foo.h"

#include <Foundation/Foundation.h>

@interface Foo : NSObject
@end

@implementation Foo
@end

int Inc(int i) {
    return i + 1;
};

// main.cpp

#include "foo.h"

int main(int argc, const char * argv[]) {
    return Inc(0);
}

❯ clang++ -c foo.mm
❯ ar rcs libfoo.a foo.o
❯ clang++ -framework Foundation libfoo.a -x c++ main.cpp -Wl,-force_load,libfoo.a -ObjC
duplicate symbol '__Z3Inci' in:
    libfoo.a[2](foo.o)
    libfoo.a[2](foo.o)
duplicate symbol '_OBJC_CLASS_$_Foo' in:
    libfoo.a[2](foo.o)
    libfoo.a[2](foo.o)
duplicate symbol '_OBJC_METACLASS_$_Foo' in:
    libfoo.a[2](foo.o)
    libfoo.a[2](foo.o)
ld: 3 duplicate symbols
clang: error: linker command failed with exit code 1 (use -v to see invocation)```