No field actually changes here; this is to put a caveat in the history that the creating message did not carry. The Wiener Staatsoper archive gives the performance of 26 February 2001 (performances/7685) exactly the same cast under Halasz as the 2 March night this was created from, so the archive fixes the run and the cast but not the night -- the choice of 2 March rests on the uploaders own file names (Vienna 2 III 01). The rest of the 2001 nights are excluded: 21 and 24 January were Carignani with Bruson, Botha and Furlanetto, and the September block is the Guadagno run that operadis lists with Miricioiu as Elena.