That answer is insufficient based on the behavior I see now.
We are using search widget with 3.2X
If I enter 45.4215,-75.6972 it takes me to Ottawa Ontario.
If I enter -75.6972,45.4215 it ALSO takes me to Ottawa Ontario.
So if someone WANTS to go to the coast of Antartica, they are out of luck, huh?
Likewise if I enter "5.1,51.5" it takes me to the same place as if I enter "51.5,5.1"
That can't be explained by ESRI wanting coordinates in X,Y order.
It looks like you are second guessing the order in which coordinates are entered.
Can you explain how it should work?