Index: trunk/src/libcschem/plug_library.c
===================================================================
--- trunk/src/libcschem/plug_library.c	(revision 10355)
+++ trunk/src/libcschem/plug_library.c	(revision 10356)
@@ -324,10 +324,22 @@
 	return 0;
 }
 
+/* Replace orig_root with new_root in a sheet's lib */
+static void lib_rehash_update_root_in_all_sheets(csch_sheet_t *sheet, csch_lib_master_t *master, csch_lib_t *orig_root, csch_lib_t *new_root)
+{
+	long n;
+	csch_lib_root_t *libroot = sheet->libs.array[master->uid];
+
+	assert(libroot != NULL);  /* csch_lib_add() created it */
+	for(n = 0; n < libroot->roots.used; n++)
+		if (libroot->roots.array[n] == orig_root)
+			libroot->roots.array[n] = new_root;
+}
+
 int csch_lib_rehash(csch_sheet_t *sheet, csch_lib_master_t *master, csch_lib_t *node)
 {
-	csch_lib_root_t *libroot;
 	csch_lib_t *root = node, *orig_root, *new_root;
+	rnd_design_t *dsg;
 	long n;
 
 	while(root->parent != NULL) root = root->parent;
@@ -352,13 +364,11 @@
 	assert(new_root != NULL); /* csch_lib_add() created it */
 
 	TODO("TODO#41: sharing root pointers may not be a good idea: they will not have unique names; see the other TODO#41");
-	/* have to fix up aliases */
-	libroot = sheet->libs.array[master->uid];
-	assert(libroot != NULL);  /* csch_lib_add() created it */
-	for(n = 0; n < libroot->roots.used; n++) {
-		if (libroot->roots.array[n] == orig_root)
-			libroot->roots.array[n] = new_root;
-	}
+
+	/* have to fix up aliases - in all open sheets because of shared roots! */
+	for(dsg = gdl_first(&rnd_designs); dsg != NULL; dsg = dsg->link.next)
+		lib_rehash_update_root_in_all_sheets((csch_sheet_t *)dsg, master, orig_root, new_root);
+
 	csch_lib_free(orig_root);
 	return 0;
 }