Bug: After turning WLAN off, phone still asks for network

I think the following is a bug and should be fixed: After turning WLAN off, the phone persists on popping up 'select network connection' when an app that needs network access is opened. This happened with OsmAnd and offline maps (Android app), opening Here maps (just to test it), browser, email and some other apps (tried all of them separately). The behaviour was correct in flight mode, though.