$ git clone -n https://src.fedoraproject.org/rpms/hddtemp.git /var/lib/mock/f45-build-13378-450/root/chroot_tmpdir/scmroot/hddtemp
Cloning into '/var/lib/mock/f45-build-13378-450/root/chroot_tmpdir/scmroot/hddtemp'...
$ git fetch origin 71bbd9eaa2bc659c5b7947a879b07e669c56d2c5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/hddtemp
 * [new ref]         71bbd9eaa2bc659c5b7947a879b07e669c56d2c5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 71bbd9e Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild