$ git clone -n https://src.fedoraproject.org/rpms/libsysstat.git /var/lib/mock/f45-build-17060-495/root/chroot_tmpdir/scmroot/libsysstat
Cloning into '/var/lib/mock/f45-build-17060-495/root/chroot_tmpdir/scmroot/libsysstat'...
$ git fetch origin ddf4839fb6c7eb2911ddbee18f85d89c41669056:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libsysstat
 * [new ref]         ddf4839fb6c7eb2911ddbee18f85d89c41669056 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ddf4839 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild