iSelectedImage is allowed to be 0.

dlls/comctl32/treeview.c

diff --git a/dlls/comctl32/treeview.c b/dlls/comctl32/treeview.c
index b13c8aa..1eb17b6 100644
--- a/dlls/comctl32/treeview.c
+++ b/dlls/comctl32/treeview.c
@@ -489,7 +489,6 @@
     tvItem->state = item->state;
     tvItem->stateMask = 0;
     tvItem->iImage = item->iImage;
-    tvItem->iImage = item->iImage;
     tvItem->iSelectedImage = item->iSelectedImage;
     tvItem->cChildren = item->cChildren;
     tvItem->lParam = item->lParam;
@@ -974,6 +973,9 @@
     if (!newItem)
 	return NULL;
 
+    newItem->iImage = -1;
+    newItem->iSelectedImage = -1;
+
     if (DPA_InsertPtr(infoPtr->items, INT_MAX, newItem) == -1)
     {
 	Free(newItem);
@@ -2435,7 +2437,7 @@
 	 * non-selected image.
 	 */
 
-	if ((wineItem->state & TVIS_SELECTED) && (wineItem->iSelectedImage))
+	if ((wineItem->state & TVIS_SELECTED) && (wineItem->iSelectedImage >= 0))
 	{
 	    /* The item is currently selected */
 	    imageIndex = wineItem->iSelectedImage;