Updating to 5.5.1 with objection 2.2.0 and pg 8.2.1 results in the following error message for GET requests with $modify query:

"select count(distinct("tableName"."columnName", "tableName"."columnName")) as "total", "tableName"."columnName" from "tableName" - column "tableName.columnName" must appear in the GROUP BY clause or be used in an aggregate function"

the modifier looks something like this:

static get modifiers() {
    return {
      includeRef: (builder: QueryBuilder<TableName>) =>
        builder
          .withGraphFetched('reference')
          .modifyGraph('reference', (refBuilder: QueryBuilder<RefTable>) =>
            refBuilder.select('columnName')
          ),
    }
  }

Does the modifier need to be adapted in any way? It would be odd in my eyes, given that the update is declared as a patch release and should not break existing implementations like this?