$ git clone -n https://src.fedoraproject.org/rpms/erlang-providers.git /var/lib/mock/f41-build-side-1-2811257-32927/root/chroot_tmpdir/scmroot/erlang-providers
Cloning into '/var/lib/mock/f41-build-side-1-2811257-32927/root/chroot_tmpdir/scmroot/erlang-providers'...
$ git fetch origin 23132948290797ede9e1483184c22a836f6c4265:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/erlang-providers
 * [new ref]         23132948290797ede9e1483184c22a836f6c4265 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2313294 Remove unused file