From 90701a4cbbe3191be77a4311fd84497f90f43f80 Mon Sep 17 00:00:00 2001
From: impinball <impinball@gmail.com>
Date: Thu, 26 Nov 2015 07:49:15 -0500
Subject: [PATCH] Only call `then` once in `prop.then`.

---
 mithril.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/mithril.js b/mithril.js
index 2b832a7c..13fb9e5a 100644
--- a/mithril.js
+++ b/mithril.js
@@ -1212,8 +1212,8 @@ void (function (global, factory) { // eslint-disable-line
 
 		prop.then = function (fufill, reject) {
 			return promise.then(function () {
-				return prop()
-			}).then(fufill, reject)
+				return fufill(prop())
+			}, reject)
 		}
 
 		prop.catch = function (reject) {