Seller Agent turned Transaction Agent Commision Question ??

[Amy King]

So let's say you contract with a seller's real estate agent to sell your rental property. There is a clause in listing agreement that allows seller agent to shift into being a transaction agent if they put offer in for buyer who does not have their own agent or bring buyer in.  Is it standard that if per listing agreement, seller's agent gets 2.8% commission and buyer's agent gets 2.8% and the original agent ultimately turns into transaction agent that said agent would get entire 5.6 % commission  or is it more standard that it would be reduced or negotiated to say 4% total or something like that?  Would love to hear as many responses as I can. Really wanting to grock what the industry standard is and/or what others have experienced.