Semantic Maps/Setting centre in query with format=openlayers/reply
From Mapping on MediaWiki
Sorry for the rather late reply :)
I confirmed the issue for Maps 0.7.6.1, and also found that is has been fixed on trunk, so will be correct in the (Semantic) Maps 1.0 release. I will be also fixing it for 0.7.x and make a 0.7.7 together with 1.0.