Mismatch on field/getter fails only on mac cpp

[Geokureli]

The following results in an error on my mac

class Test {
  static function main() {
    new Object().run();
  }
}

class Object extends Derived
{
    var top(get, default):Base;
    function get_top():Derived // Note: not a Base
    {
        return this;
    }
    
    public function run()
    {
        trace(top);
    }
}

class Base {}
class Derived extends Base { public function new () {} }

The error is

Error: ./src/states/Test.cpp:107:86: error: conditional expression is ambiguous; 'ObjectPtrstates::Derived_obj' can be converted to 'ObjectPtrstates::Base_obj' and vice versa
if (HX_FIELD_EQ(inName,"top") ) { return ::hx::Val( inCallProp == ::hx::paccAlways ? get_top() : top ); }

It almost seems like this shouldn't be allowed

Note: my actual test was a blank flixel project, built via lime test mac -debug - clean

[Simn]

It looks silly with the explicit type-hint, but I can see legit use cases for this in general. To me this looks like the generated output needs a cast in such cases.