$ git clone -n https://src.fedoraproject.org/rpms/modem-manager-gui.git /var/lib/mock/f31-build-115769-34518/root/chroot_tmpdir/scmroot/modem-manager-gui
Cloning into '/var/lib/mock/f31-build-115769-34518/root/chroot_tmpdir/scmroot/modem-manager-gui'...
$ git reset --hard dc4bd6bd1b948b12b1a9cde76eddea533a7fb3a4
HEAD is now at dc4bd6b - Rebuilt for https://fedoraproject.org/wiki/Fedora_31_Mass_Rebuild