$ git clone -n https://src.fedoraproject.org/rpms/hdparm.git /var/lib/mock/f45-build-13388-450/root/chroot_tmpdir/scmroot/hdparm
Cloning into '/var/lib/mock/f45-build-13388-450/root/chroot_tmpdir/scmroot/hdparm'...
$ git fetch origin 8b5576cfb68d153cd974c863660d34fa9386e16e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/hdparm
 * [new ref]         8b5576cfb68d153cd974c863660d34fa9386e16e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8b5576c Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild