From 7a2eb5169c58e503c63f6b5348d7cd8a45dbaba4 Mon Sep 17 00:00:00 2001
From: jon-a-nygaard <jon.arild@highsoft.com>
Date: Wed, 14 Mar 2018 13:51:06 +0100
Subject: [PATCH] Fixed #7991, treemap had wrong root on export.

---
 js/modules/treemap.src.js | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/js/modules/treemap.src.js b/js/modules/treemap.src.js
index 679fe6c4e9a..d73e2cf57f6 100644
--- a/js/modules/treemap.src.js
+++ b/js/modules/treemap.src.js
@@ -1011,14 +1011,17 @@ seriesType('treemap', 'scatter', {
 	translate: function () {
 		var series = this,
 			options = series.options,
-			rootId = series.rootNode =
-				pick(series.rootNode, series.options.rootId, ''),
+			rootId = pick(series.rootNode, options.rootId, ''),
 			rootNode,
 			pointValues,
 			seriesArea,
 			tree,
 			val;
 
+		// Set rootId on series.userOptions to pick it up in exporting.
+		// Set rootId on series to pick it up on next translate.
+		series.userOptions.rootId = series.rootNode = rootId;
+
 		// Call prototype function
 		Series.prototype.translate.call(series);