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We had a development site on a sub-domain where changes were made and then copied to the "real" site. We've been doing it this way for years for other sites and it has never been a problem. Well, a link slipped somewhere a long the way and the dev site got spidered. As the real site is totally unique content (well, except for the dev site), I was surprised at first to see that it had obtained supplemental status on A Lot of the 1000's of pages.
I'm desperately looking for the best way to handle this problem. The dev site has been removed. Are there any other avenues that I can explore to help fix this nightmare? Any thoughts are greatly appreciated.
So you've done what you should do, I'd say. I'd suggest letting things sort out for a bit.