$ git clone -n https://src.fedoraproject.org/rpms/nemo-extensions.git /var/lib/mock/f40-build-788337-135103/root/chroot_tmpdir/scmroot/nemo-extensions
Cloning into '/var/lib/mock/f40-build-788337-135103/root/chroot_tmpdir/scmroot/nemo-extensions'...
$ git fetch origin dd4c28a2d71353d40f59cc94b353c3e0ba053981:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/nemo-extensions
 * [new ref]         dd4c28a2d71353d40f59cc94b353c3e0ba053981 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at dd4c28a Fix python NameError: '_' is not defined