abilian: partition parameters have precedence over buildout ones

software/abilian/extranet_spr/instance-environment.cfg.in

@@ -13,7 +13,7 @@ ABILIAN_CONFIG=${abilian-config:location}/${abilian-config:filename}
 EXTRANET_INSTANCE_PATH=$${directories:extranet_spr-instance}
 EXTRANET_INSTANCE_HOST=$${instance-parameters:ipv6-random}
 ABILIAN_CONFIG_EXTRA_PYTHON=$${config-staging-py:rendered}
-ABILIAN_CONFIG_EXTRA_JSON=$${buildout:directory}/partition-parameters.json:$${json-extra-configuration:json-output}
+ABILIAN_CONFIG_EXTRA_JSON=$${json-extra-configuration:json-output}:$${buildout:directory}/partition-parameters.json
 LD_LIBRARY_PATH=${cairo:location}/lib:${glib:location}/lib:${pango:location}/lib
 # abilian/services/conversion.py does not like it, if PATH does not exist
 PATH=/usr/sbin:/usr/bin:/sbin:/bin