From 1553096b480e3769bb7dc29b7476960aaeac1b84 Mon Sep 17 00:00:00 2001
From: Rachel Fenichel <fenichel@google.com>
Date: Fri, 30 Nov 2018 14:46:09 -0800
Subject: [PATCH] Check if both sides of a potential connection match, not just
 one

---
 core/insertion_marker_manager.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/core/insertion_marker_manager.js b/core/insertion_marker_manager.js
index fb2fbd81b..f94677c8d 100644
--- a/core/insertion_marker_manager.js
+++ b/core/insertion_marker_manager.js
@@ -335,7 +335,8 @@ Blockly.InsertionMarkerManager.prototype.shouldUpdatePreviews_ = function(
     // Decide whether the new connection has higher priority.
     if (this.localConnection_ && this.closestConnection_) {
       // The connection was the same as the current connection.
-      if (this.closestConnection_ == candidateClosest) {
+      if (this.closestConnection_ == candidateClosest &&
+          this.localConnection_ == candidateLocal) {
         return false;
       }
       var xDiff = this.localConnection_.x_ + dxy.x - this.closestConnection_.x_;