From 2f1d8cc196a84c8a277c44f23c0a724c2d934fb3 Mon Sep 17 00:00:00 2001
From: John-David Dalton <john.david.dalton@gmail.com>
Date: Sat, 7 Sep 2013 16:49:10 -0500
Subject: [PATCH] Ensure `_.debounce` passes vendor/underscore unit tests.

---
 lodash.js | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/lodash.js b/lodash.js
index 3c74ce1b8..f3d7ee286 100644
--- a/lodash.js
+++ b/lodash.js
@@ -5489,7 +5489,9 @@
         thisArg = this;
         trailingCall = trailing && (timeoutId || !leading);
 
-        if (maxWait !== false) {
+        if (maxWait === false) {
+          var leadingCall = leading && !timeoutId;
+        } else {
           if (!maxTimeoutId && !leading) {
             lastCalled = stamp;
           }
@@ -5505,12 +5507,12 @@
             maxTimeoutId = setTimeout(maxDelayed, remaining);
           }
         }
-        else if (leading && !timeoutId) {
-          result = func.apply(thisArg, args);
-        }
         if (!timeoutId && wait !== maxWait) {
           timeoutId = setTimeout(delayed, wait);
         }
+        if (leadingCall) {
+          result = func.apply(thisArg, args);
+        }
         return result;
       };
     }