$ git clone -n https://src.fedoraproject.org/rpms/external-editor-revived.git /var/lib/mock/f42-build-side-1-3588365-46945/root/chroot_tmpdir/scmroot/external-editor-revived
Cloning into '/var/lib/mock/f42-build-side-1-3588365-46945/root/chroot_tmpdir/scmroot/external-editor-revived'...
$ git fetch origin 404e4d196501c4de6cb49266922a1f3db82fb155:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/external-editor-revived
 * [new ref]         404e4d196501c4de6cb49266922a1f3db82fb155 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 404e4d1 Update to version 1.0.0.