Database

db={"schema":[{"_id":"c19592b6-8110-4684-9c96-f133e08d973e","display":"WAITING","name":"waiting","color":"#ccf0d5","type":"status"},{"_id":"69e39c0c-b722-433a-aa6e-471c24211a4d","display":"IN PROGRESS","name":"in_progress","color":"#4ddb7f","type":"status"},{"_id":"59336051-776e-4f02-b988-46b3260f097c","display":"APPROVED","name":"approved","color":"#738ace","type":"status"},{"_id":"e351ed21-0db3-44aa-ae0c-d7b0b92b4dce","index":1,"display":"In Progress","name":"in_progress","type":"state","members":["c19592b6-8110-4684-9c96-f133e08d973e","69e39c0c-b722-433a-aa6e-471c24211a4d"]},{"_id":"2b57768b-919e-4cba-a861-a682eeac0cd2","index":2,"display":"In Review","name":"in_review","type":"state","members":["59336051-776e-4f02-b988-46b3260f097c"]}]}

Query

db.schema.aggregate([{$match:{type:"state"}},{$unwind:"$members"},{$lookup:{from:"schema",localField:"members",foreignField:"_id",as:"members"}},{$group:{_id:"$_id",index:{$first:"$index"},name:{$first:"$name"},display:{$first:"$display"},type:{$first:"$type"},members:{$push:{$first:"$members"}}}}])

Result