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I noticed a bunch of those 'r' questions on Stack Overflow have been tagged something like 'r r plot' or 'r ide r'.

Is this a bug? Either way it seems redundant so I cleaned up a bunch of them.

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+1 for actually being a good citizen and cleaning up some of the posts. –  TheTXI Jul 23 '09 at 13:29

3 Answers 3

up vote 5 down vote accepted

It's probably a residual of retagging r-language to r, where many questions had both tags. The retagging function doesn't check to see if it will cause duplicate tags.

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Go here for more information meta.stackexchange.com/questions/7528/… –  Brad Gilbert Jul 23 '09 at 14:18

For info, the related retag-request is this one. As has been stated, the bulk re-tagging doesn't currently check for duplicates. It would be nice if it did (and I expect that this will get fixed in time; either as part of retagging, or as a separate de-dup script). But not today.

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I used this regex to clean up the duplicate tags.

We may have to run this periodically depending on how much renaming goes on..

edit: I've added a moderator function which deduplicates all current question tags, and all post history tag entries. The next time there's a duplicate tag problem, just flag one of them for moderator attention and we'll run the tag deduplicator page.

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