Use stable sorting for text facets sorted by count

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1. Create a text facet
2. Sort it by count
3. Select a value in the facet

Every time you select/unselect a value, the list of values gets resorted and 
since stable sorting is not used, all the values with the same count get 
reordered.  This means that the thing you just clicked on is now in a 
different place.  Very disorienting.  A stable sorting algorithm should be 
used so that things with equal sort keys stay in their original ordering.

Original issue reported on code.google.com by tfmorris on 21 May 2010 at 5:23

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Original comment by dfhu...@gmail.com on 21 May 2010 at 5:37

• Changed state: Accepted

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Fixed by r841.

Original comment by dfhu...@gmail.com on 22 May 2010 at 2:28

• Changed state: Fixed

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Original comment by tfmorris on 18 Sep 2012 at 2:56

• Added labels: Milestone-1.1