Merge pull request #971 from ongjinwen/feature/FixDuplicateBug

Fix double duplication of blocks with Ctrl+D

Assets/Fungus/Docs/CHANGELOG.txt

@@ -5,6 +5,7 @@ Unreleased
 ======
 ## Fixed
  - Add missing VariableDrawer for ObjectVariable. Thanks to CG-Tespy.
+ - Fix double duplication of blocks in flowchart window. Thanks to ongjinwen.
  
 ## Changed
  - Block will LogError when an exception is caught from a Command being Executed.

Assets/Fungus/Scripts/Editor/FlowchartWindow.cs

@@ -1895,11 +1895,8 @@ namespace Fungus.EditorUtils
         {
             copyList.Clear();
 
-            foreach (var block in flowchart.SelectedBlocks)
+            foreach (var block in flowchart.SelectedBlocks
-            {
+                .Union(mouseDownSelectionState))
-                copyList.Add(new BlockCopy(block));
-            }
-            foreach (var block in mouseDownSelectionState)
             {
                 copyList.Add(new BlockCopy(block));
             }