Method unsetupObject

src/App/DocumentObject.cpp:1437–1444

}

void DocumentObject::unsetupObject()
{
    // call all extensions
    auto vector = getExtensionsDerivedFromType<App::DocumentObjectExtension>();
    for (auto ext : vector) {
        ext->onExtendedUnsetupObject();
    }
}

void App::DocumentObject::_removeBackLink(DocumentObject* rmvObj)
{