$ git clone -n https://src.fedoraproject.org/rpms/http_ping.git /var/lib/mock/f45-build-13499-451/root/chroot_tmpdir/scmroot/http_ping
Cloning into '/var/lib/mock/f45-build-13499-451/root/chroot_tmpdir/scmroot/http_ping'...
$ git fetch origin 959b4f8378ea87cf00883f4fd8451c598a1b086e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/http_ping
 * [new ref]         959b4f8378ea87cf00883f4fd8451c598a1b086e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 959b4f8 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild