--- a/bin/ai/regression/regression.nut	Mon Jun 23 16:23:36 2008 +0000
+++ b/bin/ai/regression/regression.nut	Tue Jun 24 11:37:33 2008 +0000
@@ -164,6 +164,11 @@
 	for (local i = list.Begin(); list.HasNext(); i = list.Next()) {
 		print("   " + i);
 	}
+
+	list.Clear();
+	foreach (idx, val in list) {
+		print("   " + idx);
+	}
 }
 
 function Regression::Std()

--- a/src/ai/api/ai_abstractlist.cpp	Mon Jun 23 16:23:36 2008 +0000
+++ b/src/ai/api/ai_abstractlist.cpp	Tue Jun 24 11:37:33 2008 +0000
@@ -718,6 +718,10 @@
 
 SQInteger AIAbstractList::_nexti(HSQUIRRELVM vm) {
 	if (sq_gettype(vm, 2) == OT_NULL) {
+		if (this->IsEmpty()) {
+			sq_pushnull(vm);
+			return 1;
+		}
 		sq_pushinteger(vm, this->Begin());
 		return 1;
 	}