[Haynes] I was told that they’ve [the Warriors] urged the league to look into Portland’s dealings with New Orleans last year when it was the CJ McCollum-Larry Nance trade.. they believe that a similar incident happened in that deal

Source

There’s another layer to this from the Warrior’s standpoint:

I was told that they’ve urged the league to look into Portland’s dealings with New Orleans last year when it was the CJ McCollum-Larry Nance trade. They’ve urged the league to look into that — particularly, Larry Nance Jr. — because they believe that a similar incident happened in that deal and they feel like the Blazers have a pattern of doing something where they’re either withholding information or presenting misleading information.