Mon, 02 Nov 2015 18:31:57 +0100 wenzelm avoid premature flushing and thus flashing of text area;
Mon, 02 Nov 2015 18:30:25 +0100 wenzelm tuned whitespace;
Mon, 02 Nov 2015 18:09:14 +0100 wenzelm clarified Query_Operation.State, with separate instance to avoid extra flush (see also 6ddeb83eb67a);
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