From 43da844881a6ea1b346957b9772c3ececf633713 Mon Sep 17 00:00:00 2001
From: Ryan Pastorelle <rpastorelle@futurimedia.com>
Date: Tue, 19 Jul 2016 13:29:31 -0400
Subject: [PATCH] Fix a logic error: When the top position is 0, the responder
 allows bottom to move above top.

---
 Slider.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/Slider.js b/Slider.js
index 9dc6b44..a89a02f 100644
--- a/Slider.js
+++ b/Slider.js
@@ -132,7 +132,8 @@ var Slider = React.createClass({
   moveOne(gestureState) {
     var unconfined = gestureState.dx + this.state.pastOne;
     var bottom     = 0;
-    var top        = (this.state.positionTwo - this.stepLength) || this.props.sliderLength;
+    var trueTop    = this.state.positionTwo - this.stepLength;
+    var top        = (trueTop === 0) ? 0 : trueTop || this.props.sliderLength;
     var confined   = unconfined < bottom ? bottom : (unconfined > top ? top : unconfined);
     var value      = converter.positionToValue(this.state.positionOne, this.optionsArray, this.props.sliderLength);