Distinct with Embedded Entity crashes

[deusaquilus]

Version: (e.g. 3.4.0-SNAPSHOT)
Module: (e.g. quill-sql)
Database: (e.g. ALL)

This query:

Distinct with embedded does not work:
case class Parent(id:Int, emb1:Emb)
case class Emb(a:Int, b:Int) extends Embedded
run { query[Emb].map(e => Parent(1, e)).distinct }

Causes the following error:

cmd33.sc:1: exception during macro expansion: 
java.lang.IllegalStateException: The monad composition can't be expressed using applicative joins. Faulty expression: '(1, e)'. Free variables: 'List(e)'.
	at io.getquill.util.Messages$.fail(Messages.scala:16)
	at io.getquill.context.sql.idiom.SqlIdiom$$anonfun$3.apply(SqlIdiom.scala:42)
	at io.getquill.context.sql.idiom.SqlIdiom$$anonfun$3.apply(SqlIdiom.scala:42)
	at scala.Option.map(Option.scala:146)

@getquill/maintainers

[deusaquilus]

Fixed via #1597