Duplicated addresses in x-hasura-kusama

[Tbaut]

I ended up with the following JWT in test, without modifying anything manually in the DB.

     "x-hasura-kusama": {
        HNZata7iMYWmk5RvZRTiAsSDhV8366zq2YGb3tLH5Upf74F,
        HNZata7iMYWmk5RvZRTiAsSDhV8366zq2YGb3tLH5Upf74F,
        HNZata7iMYWmk5RvZRTiAsSDhV8366zq2YGb3tLH5Upf74F
    }",
    "x-hasura-kusama-default": "HNZata7iMYWmk5RvZRTiAsSDhV8366zq2YGb3tLH5Upf74F",

We should find out how this is possible and fix this bug / add tests. This might be related to encoding, e.g I can link twice the same address, when it's encoded differently?