self.index can be None

diff --git a/lib/python/Components/Converter/StringList.py b/lib/python/Components/Converter/StringList.py
index 5d02e9b..c9488db 100644 (file)
--- a/lib/python/Components/Converter/StringList.py
+++ b/lib/python/Components/Converter/StringList.py
@@ -25,7 +25,7 @@ class StringList(Converter):
 
        @cached
        def getCurrent(self):
-               if self.source is None or self.index >= len(self.source.list):
+               if self.source is None or self.index is None or self.index >= len(self.source.list):
                        return None
                return self.source.list[self.index]