$ git clone -n https://src.fedoraproject.org/rpms/gtk-gnutella.git /var/lib/mock/f45-build-13178-447/root/chroot_tmpdir/scmroot/gtk-gnutella
Cloning into '/var/lib/mock/f45-build-13178-447/root/chroot_tmpdir/scmroot/gtk-gnutella'...
$ git fetch origin 1fa55783f3c7bdb97ff63c8dc0bc401db861c803:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gtk-gnutella
 * [new ref]         1fa55783f3c7bdb97ff63c8dc0bc401db861c803 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1fa5578 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild