If you were just swapping ports maybe. But you are merging two stacks. Need a full outage for that.
Also, please don't cable it that way.
Instead:
controllerA-0a -> Shelf00-IOMA-Square
controllerB-0a -> Shelf00-IOMB-Square
controllerA-0b -> Shelf10-IOMB-Circle
controllerB-0b -> Shelf10-IOMA-Circle