$ git clone -n https://src.fedoraproject.org/rpms/dtkcommon.git /var/lib/mock/f40-build-746143-112481/root/chroot_tmpdir/scmroot/dtkcommon
Cloning into '/var/lib/mock/f40-build-746143-112481/root/chroot_tmpdir/scmroot/dtkcommon'...
$ git fetch origin 25879b074d5b8c9262b162ae4742153f364c3e0f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/dtkcommon
 * [new ref]         25879b074d5b8c9262b162ae4742153f364c3e0f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 25879b0 New release 5.6.9