From cd09f9dfeeace894c8b5396f98aec3708e9608b0 Mon Sep 17 00:00:00 2001
From: Bryan Housel <bryan@mapbox.com>
Date: Sun, 7 May 2017 22:44:42 -0400
Subject: [PATCH] Prevent mouseup from turning into a click

Mouseup was turning into a click on whatever was the last thing clicked.
In this walkthrough, this would sometimes be the "Add Area" mode button,
which would re-enter the add area mode and throw away the user's drawing.
(I have no idea why.)
---
 modules/behavior/draw.js | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/modules/behavior/draw.js b/modules/behavior/draw.js
index 7549309b9..9a221e897 100644
--- a/modules/behavior/draw.js
+++ b/modules/behavior/draw.js
@@ -141,6 +141,8 @@ export function behaviorDraw(context) {
         d3.select(window).on('keyup.space-block', function() {
             disableSpace = false;
             d3.select(window).on('keyup.space-block', null);
+            d3.event.preventDefault();
+            d3.event.stopPropagation();
         });
 
         d3.event.preventDefault();