$ git clone -n https://src.fedoraproject.org/rpms/hddtemp.git /var/lib/mock/f42-build-885279-186756/root/chroot_tmpdir/scmroot/hddtemp
Cloning into '/var/lib/mock/f42-build-885279-186756/root/chroot_tmpdir/scmroot/hddtemp'...
$ git fetch origin 8583db5df55f38cad4b0ef947647f589e5beb8f2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/hddtemp
 * [new ref]         8583db5df55f38cad4b0ef947647f589e5beb8f2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8583db5 Fix for the bin/sbin merge: install real binary to libexecdir