SEBA-465 many2many should not have null= set

Change-Id: I6293e768cfc32bfbbec4fe29a27f1d0ee21fb344
diff --git a/VERSION b/VERSION
index e5c4368..440e866 100644
--- a/VERSION
+++ b/VERSION
@@ -1,2 +1,2 @@
-2.1.42
+2.1.43