When trying to filter on a UUID field (not as PK, but as a normal field) it does not return any results. looking at the JSONAPI formatted return, it says
Screen Shot 2019年08月24日 at 16 46 12

but it is a properly formatted UUID.

{
"errors": [
{
"detail": "invalid query parameter: format",
"source": {
"pointer": "/data"
},
"status": "400"
}
]
}

If I submit an improperly formatted UUID it returns
Screen Shot 2019年08月24日 at 16 50 51

With group_id being the UUID I'm trying to filter by. And the JSONAPI formatted response is the same. Seems like a bug -- but am I doing something wrong?