From b8f52a91823411f9cdfcb7255c9af0df7f6181a4 Mon Sep 17 00:00:00 2001
From: Titus Wormer <tituswormer@gmail.com>
Date: Mon, 6 Jun 2016 18:11:53 +0200
Subject: [PATCH] Fix parameters when using reset

Previously, `true` was passed when in `reset: true` mode and a rule
was turned on by passing `true` as well.  Now, `undefined` is passed
instead.
---
 lib/index.js | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/lib/index.js b/lib/index.js
index 85776371..3fe2e5a2 100644
--- a/lib/index.js
+++ b/lib/index.js
@@ -121,7 +121,7 @@ function attachFactory(id, rule, options) {
             rule(ast, file, options, done);
         }
 
-        return options === false ? null : plugin;
+        return plugin;
     }
 
     return attach;
@@ -267,7 +267,13 @@ function lint(remark, options) {
         known.push(id);
 
         if (!(setting === null || setting === undefined)) {
+            /* Pass turned on rules `undefined`. */
+            if (reset && setting === true) {
+                setting = undefined;
+            }
+
             if (setting === false) {
+                setting = undefined;
                 disable.push(id);
             } else {
                 enable.push(id);