Last modified: 2009-02-20 21:29:32 UTC
Currently, SRF-Ploticus creates a hash based on the query params, and if liveupdating is on, the query result set. Though it may be slim, there is a small chance of a cache collision when two separate identical queries with liveupdating=false may retrieve the wrong results from the cache. To eliminate this possibility, seed the hash with the article name and the query runnumber as well.
Fixed in revision 47591 (http://svn.wikimedia.org/viewvc/mediawiki?view=rev&revision=47591). Seeded hash with $wgArticle->mTitle and $smwgIQRunningNumber to eliminate the possibility of cache collisions for identical ploticus queries across pages.