[PATCH] [REVIEW:3-5] graphical query editor mangles sorting order

[Lionel Elie Mamane]

Attached patch fixes (old! at least back to 3.3) bugs exposed by
fixing fdo#46843, about sort orders in the graphical query editor:

fdo#47370: when sort columns order does not match result columns
           order, sort is reordered to result order

	   E.g. "SELECT a, b, c FROM foo ORDER BY c, a"
           becomes "SELECT a, b, c FROM foo ORDER BY a, c"

fdo#47560: when several sort columns are "out of result order", all
           are set to the last

	   E.g. "SELECT a, b, c FROM foo ORDER BY c, a, b"
	   becomes "SELECT a, b, c FROM foo ORDER BY c, b, b"

	   That is simply because those "additional" sort columns were
	   set in the *same* in-memory structure. Fix: allocate a
	   fresh structure for each new sort column.

Please apply to libreoffice-3-5.

-- 
Lionel