$ git clone -n https://src.fedoraproject.org/rpms/libsepol.git /var/lib/mock/f40-build-2228113-53057/root/chroot_tmpdir/scmroot/libsepol
Cloning into '/var/lib/mock/f40-build-2228113-53057/root/chroot_tmpdir/scmroot/libsepol'...
$ git fetch origin 1da978b3db8ffd3b415f1b68651950342d567ba3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libsepol
 * [new ref]         1da978b3db8ffd3b415f1b68651950342d567ba3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1da978b SELinux userspace 3.6 release