$ git clone -n https://src.fedoraproject.org/rpms/flxmlrpc.git /var/lib/mock/f45-build-9127-399/root/chroot_tmpdir/scmroot/flxmlrpc
Cloning into '/var/lib/mock/f45-build-9127-399/root/chroot_tmpdir/scmroot/flxmlrpc'...
$ git fetch origin 91472b05cb45961eb1ca0a54360e324dbaca8aa8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/flxmlrpc
 * [new ref]         91472b05cb45961eb1ca0a54360e324dbaca8aa8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 91472b0 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild