Joins not working for dot syntax / nested objects

[ColeTownsend]

"location": {
      "id": 5,
      "name": "87 Summer St",
      ...
},
"level": {
      "id": 3,
      "location_id": 5,
      "name": "Floor 20"
}

[lukasondre]

@ColeTownsend joins with dot syntax work as expected. The source of this issue was actually that the space between the pipe and the filter name was not allowed, e.g. {one,two | & • } didn't work but {one,two |& • } did. Now both work. Sorry for the confusion.