--- xmlschemas.c.orig	2024-07-24 16:00:51.000000000 +0200
+++ xmlschemas.c	2025-06-13 12:28:51.821977000 +0200
@@ -23672,6 +23672,7 @@
 			}
 			if (xmlSchemaItemListAdd(bind->dupls, bind->nodeTable[j]) == -1)
 			    goto internal_error;
+			dupls = (xmlSchemaPSVIIDCNodePtr *) bind->dupls->items;
 			/*
 			* Remove the duplicate entry from the IDC node-table.
 			*/
@@ -23888,6 +23889,7 @@
 				goto internal_error;
 			}
 			xmlSchemaItemListAdd(parBind->dupls, parNode);
+			dupls = (xmlSchemaPSVIIDCNodePtr *) parBind->dupls->items;
 		    } else {
 			/*
 			* Add the node-table entry (node and key-sequence) of