clear the category's variable tail pointer as well when variables are detached from it

git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.2@47686 65c4cc65-6c06-0410-ace0-fbb531ad65f3

diff --git a/config.c b/config.c
index 616bb657edc720729ff718b83f8bbbcd6218fc92..4b3c79bf12cfaeaccb1fd3dcb5e61eac9361eaf2 100644 (file)
--- a/config.c
+++ b/config.c
@@ -301,6 +301,7 @@ struct ast_variable *ast_category_detach_variables(struct ast_category *cat)
 
        v = cat->root;
        cat->root = NULL;
+       cat->last = NULL;
 
        return v;
 }