$ git clone -n https://src.fedoraproject.org/rpms/hddfancontrol.git /var/lib/mock/f45-build-39646-750/root/chroot_tmpdir/scmroot/hddfancontrol
Cloning into '/var/lib/mock/f45-build-39646-750/root/chroot_tmpdir/scmroot/hddfancontrol'...
$ git fetch origin 7bf3f9cb973e1273714c6bea4fa3c6b980961105:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/hddfancontrol
 * [new ref]         7bf3f9cb973e1273714c6bea4fa3c6b980961105 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7bf3f9c drop ix86 support