* ui: Ensure configuration is passed through to findInstanceBySlug
Due to the addition of namespace support, this arguments passed to this
method have been increased. Whilst the nspace support continues ot work
here, the configuration for blocking queries is never passed through.
This results in a 2 second poll rather than a blocking query.
This commit fixes that
* ui: Add a basic test to check the number of arguments passed through
0505ebd04c