$ git clone -n https://src.fedoraproject.org/rpms/aqute-bnd.git /var/lib/mock/f42-build-3419541-45162/root/chroot_tmpdir/scmroot/aqute-bnd
Cloning into '/var/lib/mock/f42-build-3419541-45162/root/chroot_tmpdir/scmroot/aqute-bnd'...
$ git fetch origin 3d4acc14cbda4b297eaf6fa8c228951e1400f527:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/aqute-bnd
 * [new ref]         3d4acc14cbda4b297eaf6fa8c228951e1400f527 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3d4acc1 Drop javadoc package