$ git clone -n https://src.fedoraproject.org/rpms/lpairs.git /var/lib/mock/f45-build-17579-501/root/chroot_tmpdir/scmroot/lpairs
Cloning into '/var/lib/mock/f45-build-17579-501/root/chroot_tmpdir/scmroot/lpairs'...
$ git fetch origin 6367827324d34f6f9a7b2be8631c6c35237ef53b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/lpairs
 * [new ref]         6367827324d34f6f9a7b2be8631c6c35237ef53b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6367827 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild