$ git clone -n https://src.fedoraproject.org/rpms/copr-dist-git.git /var/lib/mock/f41-build-side-1-2811109-32926/root/chroot_tmpdir/scmroot/copr-dist-git
Cloning into '/var/lib/mock/f41-build-side-1-2811109-32926/root/chroot_tmpdir/scmroot/copr-dist-git'...
$ git fetch origin 413033b73f86713a358f3a8148e8ade8c112dff0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/copr-dist-git
 * [new ref]         413033b73f86713a358f3a8148e8ade8c112dff0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 413033b Update copr-dist-git to 1.0-1