$ git clone -n https://src.fedoraproject.org/rpms/postgresqltuner.git /var/lib/mock/f45-build-28850-633/root/chroot_tmpdir/scmroot/postgresqltuner
Cloning into '/var/lib/mock/f45-build-28850-633/root/chroot_tmpdir/scmroot/postgresqltuner'...
$ git fetch origin e9fbf1d507824b0f8e5f2105e48c729f31042fa4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/postgresqltuner
 * [new ref]         e9fbf1d507824b0f8e5f2105e48c729f31042fa4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e9fbf1d Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild