Don't check stateMask in treeview

[Mike Hearn <m.hearn@signal.qinetiq.com>]

I tested in windows xp, and found that the treeview control ignores the
stateMask field when getting item data. This fixes a bug in the NSIS
installer as well.

ChangeLog:
TREEVIEW_GetItemA should ignore stateMask, as Windows does

thanks -mike

--- dlls/comctl32/treeview.c.old	2003-03-25 12:21:12.000000000 +0000
+++ dlls/comctl32/treeview.c	2003-03-25 15:49:50.000000000 +0000
@@ -2016,8 +2016,12 @@
     if (tvItem->mask & TVIF_SELECTEDIMAGE)
 	tvItem->iSelectedImage = wineItem->iSelectedImage;
 
-    if (tvItem->mask & TVIF_STATE)
-	tvItem->state = wineItem->state & tvItem->stateMask;
+    if (tvItem->mask & TVIF_STATE) {
+        /* Careful here - Windows ignores the stateMask when you get the state
+ 	    That contradicts the documentation, but makes more common sense, masking
+	    retrieval in this way seems overkill */
+        tvItem->state = wineItem->state;
+    }
 
     if (tvItem->mask & TVIF_TEXT)
 	lstrcpynA(tvItem->pszText, wineItem->pszText, tvItem->cchTextMax);