WYSIWYG editor converts a path link "queryString" parameter into one named "querystring"

To reproduce:

• Create a page with the following content:

  [[label>>path:whatever||queryString="a=b"]]
  
  hello
  

• Edit in WYSIWYG and replace "hello" with "hello2" (just to make a change) and save

You should see that the content has been wrongly converted to:

[[label>>path:whatever||querystring="a=b"]]

hello2