msi: Ref count temporary columns and release them when necessary.
diff --git a/dlls/msi/create.c b/dlls/msi/create.c
index f632ef6..8f33ec3 100644
--- a/dlls/msi/create.c
+++ b/dlls/msi/create.c
@@ -133,6 +133,7 @@
     NULL,
     NULL,
     NULL,
+    NULL,
 };
 
 static UINT check_columns( column_info *col_info )