From 676dda7ca634810498a8b25cf5e806137be8049b Mon Sep 17 00:00:00 2001
From: Andreas Hocevar <andreas.hocevar@gmail.com>
Date: Tue, 14 Feb 2017 01:15:16 +0100
Subject: [PATCH] Reset kinetic when number of touches changes

---
 src/ol/interaction/dragpan.js | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/ol/interaction/dragpan.js b/src/ol/interaction/dragpan.js
index 83c2566a36..9ac6052994 100644
--- a/src/ol/interaction/dragpan.js
+++ b/src/ol/interaction/dragpan.js
@@ -87,6 +87,10 @@ ol.interaction.DragPan.handleDragEvent_ = function(mapBrowserEvent) {
       center = view.constrainCenter(center);
       view.setCenter(center);
     }
+  } else if (this.kinetic_) {
+    // reset so we don't overestimate the kinetic energy after
+    // after one finger down, tiny drag, second finger down
+    this.kinetic_.begin();
   }
   this.lastCentroid = centroid;
   this.lastPointersCount_ = targetPointers.length;