From 6f6005d7b87f26d97e3fed86082b8c5b8def5d49 Mon Sep 17 00:00:00 2001
From: Ben McCann <322311+benmccann@users.noreply.github.com>
Date: Tue, 10 Dec 2019 15:57:21 -0800
Subject: [PATCH] Shrink _parsed to match if dataset shrinks (#6826)

---
 src/core/core.datasetController.js  | 1 +
 test/specs/controller.bar.tests.js  | 1 +
 test/specs/controller.line.tests.js | 2 +-
 3 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/core/core.datasetController.js b/src/core/core.datasetController.js
index 73658bb06b0..30921ef1361 100644
--- a/src/core/core.datasetController.js
+++ b/src/core/core.datasetController.js
@@ -955,6 +955,7 @@ helpers.extend(DatasetController.prototype, {
 			me.insertElements(numMeta, numData - numMeta);
 		} else if (numData < numMeta) {
 			meta.data.splice(numData, numMeta - numData);
+			meta._parsed.splice(numData, numMeta - numData);
 			me._parse(0, numData);
 		} else if (changed) {
 			me._parse(0, numData);
diff --git a/test/specs/controller.bar.tests.js b/test/specs/controller.bar.tests.js
index e0894dbc579..76314b46367 100644
--- a/test/specs/controller.bar.tests.js
+++ b/test/specs/controller.bar.tests.js
@@ -722,6 +722,7 @@ describe('Chart.controllers.bar', function() {
 		chart.update();
 
 		expect(meta.data.length).toBe(2);
+		expect(meta._parsed.length).toBe(2);
 
 		[
 			{x: 89, y: 512},
diff --git a/test/specs/controller.line.tests.js b/test/specs/controller.line.tests.js
index 51c6928e232..61248398dd9 100644
--- a/test/specs/controller.line.tests.js
+++ b/test/specs/controller.line.tests.js
@@ -197,7 +197,7 @@ describe('Chart.controllers.line', function() {
 		chart.update();
 
 		expect(meta.data.length).toBe(2);
-
+		expect(meta._parsed.length).toBe(2);
 
 		[
 			{x: 0, y: 512},