smartRefresh duplicate bug

Hello,

I found a bug with smart refresh. Here are the steps to reproduce it directly on your sample page
dhtmlx.com/docs/products/dht … fresh.html

  1. Edit the source code with firebug to add a new action:
    Refresh root (smart mode) </ a>

  2. Open the first folder “Item 0-0”

  3. Click on the new link “Refresh root (smart mode)”

  4. Open the second folder “Item-0-1”

  5. Move the subfolder “Item-0-1-0” inside “Item-0-0” folder

The contents of the Item-0-0 is duplicated.
How can we avoid this issue?

Appreciate your feedback.

Thanks

Hello
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