ab823176d3
Steps to reproduce were: * Ensure //Render//->//Display Mode// is //New Window// * F12 * In the opened Image Editor, Alt+S to save the image * Save the image The saving would fail silently. Issue was that wm_handler_op_context() would fail to find the correct area to activate, as the wrong window was active in context. So allow overriding this window and do so when creating the file-select handler.