Rolling the mouse wheel doesn't open the right window

This is how to reproduce the bug that I found:

1)Open two windows of an application, let's say for example google chrome, so I have the window A and the window B of chrome.
2)Let's say that I'm surfing using the window A of chrome.
3)Open another application.
4)Now I want to come back surfing in the window A, therefore I click the chrome icon on plank and I'll get the window A

Here's the bug:
In the point 4 if instead than clicking the chrome icon on plank I use the wheel to open it, instead than the window A I'll get the window B!

Now Imagine if I opened several windows of chrome. To find again the window A I'll need to roll the wheel several time and since that I need to switch among applications very often this is very annoying and breaks my workflow.

(I always use the wheel instead than clicking because I don't like to always click the mouse since that I need to use lots of applications, so I'd be bothering who's near me)