From b8a3e2f163af3782dff78a24ab2ae3fcef26bd36 Mon Sep 17 00:00:00 2001
From: Nathan Sobo <nathan@github.com>
Date: Tue, 28 Feb 2017 18:12:17 -0700
Subject: [PATCH] Don't clear elements owned by other components from line
 nodes map

We should really be recycling elements when they move between lines, but
that's a bigger project.
---
 src/text-editor-component.js | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/text-editor-component.js b/src/text-editor-component.js
index 78c3655f9..cbee96c94 100644
--- a/src/text-editor-component.js
+++ b/src/text-editor-component.js
@@ -984,8 +984,11 @@ class LineComponent {
   update () {}
 
   destroy () {
-    this.props.lineNodesByScreenLineId.delete(this.props.screenLine.id)
-    this.props.textNodesByScreenLineId.delete(this.props.screenLine.id)
+    const {lineNodesByScreenLineId, textNodesByScreenLineId, screenLine} = this.props
+    if (lineNodesByScreenLineId.get(screenLine.id) === this.element) {
+      lineNodesByScreenLineId.delete(screenLine.id)
+      textNodesByScreenLineId.delete(screenLine.id)
+    }
   }
 }