From 9abc547bfb7df52c0d967caa95ec85ce017b4d77 Mon Sep 17 00:00:00 2001
From: Antonio Scandurra <me@as-cii.com>
Date: Tue, 22 Mar 2016 14:56:22 +0100
Subject: [PATCH] Copy also DisplayLayer

---
 src/display-buffer.coffee | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/display-buffer.coffee b/src/display-buffer.coffee
index e025ce03d..b10ffb0c4 100644
--- a/src/display-buffer.coffee
+++ b/src/display-buffer.coffee
@@ -52,7 +52,7 @@ class DisplayBuffer extends Model
       @grammarRegistry, @packageManager, @assert
     })
     @buffer = @tokenizedBuffer.buffer
-    @displayLayer = @buffer.getDisplayLayer() ? @buffer.addDisplayLayer()
+    @displayLayer ?= @buffer.getDisplayLayer() ? @buffer.addDisplayLayer()
     @displayLayer.setTextDecorationLayer(@tokenizedBuffer)
     @charWidthsByScope = {}
     @defaultMarkerLayer = @displayLayer.addMarkerLayer()
@@ -96,7 +96,7 @@ class DisplayBuffer extends Model
   copy: ->
     new DisplayBuffer({
       @buffer, tabLength: @getTabLength(), @largeFileMode, @config, @assert,
-      @grammarRegistry, @packageManager
+      @grammarRegistry, @packageManager, displayLayer: @displayLayer.copy()
     })
 
   resetDisplayLayer: ->