Tile data retrieve via RMWebTileImage not released in iOS 6

[tagcat]

Tile data retrieve via RMWebTileImage and RMURLConnectionOperation (CFData object) is not released in iOS 6. Assuming Instruments (Allocation) works, the data allocated to CFData objects keep increasing as one zooms or pans the map. A quick zoom of the world will demonstrate a dramatic use of memory by this object type. Symptom show for Xcode 4.5.2 iOs simulator 6.0 (358.4) running sample markermurder for iPad (768x1024). Same result with my ipad app.