$ git clone -n https://src.fedoraproject.org/rpms/libspnav.git /var/lib/mock/f45-build-17030-495/root/chroot_tmpdir/scmroot/libspnav
Cloning into '/var/lib/mock/f45-build-17030-495/root/chroot_tmpdir/scmroot/libspnav'...
$ git fetch origin ac3f77fc0491fecea90265299bd99af36e67f34b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libspnav
 * [new ref]         ac3f77fc0491fecea90265299bd99af36e67f34b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ac3f77f Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild