$ git clone -n https://src.fedoraproject.org/rpms/bash-completion.git /var/lib/mock/f42-build-3300261-41426/root/chroot_tmpdir/scmroot/bash-completion
Cloning into '/var/lib/mock/f42-build-3300261-41426/root/chroot_tmpdir/scmroot/bash-completion'...
$ git fetch origin d3825b69560676e9847997055e823c972537fa57:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/bash-completion
 * [new ref]         d3825b69560676e9847997055e823c972537fa57 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d3825b6 Update to version 2.16