$ git clone -n https://src.fedoraproject.org/rpms/libsepol.git /var/lib/mock/f41-build-813574-148696/root/chroot_tmpdir/scmroot/libsepol
Cloning into '/var/lib/mock/f41-build-813574-148696/root/chroot_tmpdir/scmroot/libsepol'...
$ git fetch origin 7bc334f80c3470b1730191b9ecd47ee1c857438c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libsepol
 * [new ref]         7bc334f80c3470b1730191b9ecd47ee1c857438c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7bc334f Move changelog to changelog and use %autochangelog