$ git clone -n https://src.fedoraproject.org/rpms/CuraEngine.git /var/lib/mock/f39-build-1681832-41044/root/chroot_tmpdir/scmroot/CuraEngine
Cloning into '/var/lib/mock/f39-build-1681832-41044/root/chroot_tmpdir/scmroot/CuraEngine'...
fatal: unable to access 'https://src.fedoraproject.org/rpms/CuraEngine.git/': The requested URL returned error: 503