From 84838a67f35798676624a6de2b7238632b09766c Mon Sep 17 00:00:00 2001
From: Neil Fraser <fraser@google.com>
Date: Thu, 20 Aug 2015 12:07:48 -0700
Subject: [PATCH] Don't delete connected child blocks.

---
 core/block_svg.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/core/block_svg.js b/core/block_svg.js
index e7f5176b7..a2268ccf6 100644
--- a/core/block_svg.js
+++ b/core/block_svg.js
@@ -456,7 +456,7 @@ Blockly.BlockSvg.prototype.onMouseUp_ = function(e) {
         // Don't throw an object in the trash can if it just got connected.
         this_.workspace.trashcan.close();
       }
-    } else if (Blockly.selected.isDeletable() &&
+    } else if (!this_.getParent() && Blockly.selected.isDeletable() &&
         this_.workspace.isDeleteArea(e)) {
       var trashcan = this_.workspace.trashcan;
       if (trashcan) {