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Now, the URLs with the query string are ranking about one page less than the previous URLs and the previous URLs are supplemental.
We took the step to block the query parameter URLs with our robots.txt in hopes that our main URLs return.
How long do you think this will take?
Is there anything else we should do?
Whatever you do, create a work flow discipline that prevents future issues.
It didn't last long of course, but keeping the redirect in place prevented any further such silliness.
Or better yet, what if you have a way for customers to sort information on the page and you're passing a string to define the sort option.
Google really has to do something about this.