Spot on Leeds and you beat me to it.
I was going to say this thread had been taken slightly off topic because we were originally discussing integrity, not loyalty.
If two parties shake hands on an agreement that should seal the deal until the paperwork is signed.
This affair sounds as though Warnock reneged on the agreement and that will unfortunately tarnish his memory in a lot of people's eyes.
The fact that he's a Yorkshireman and still did this makes it even worse!