When trying to move a subfolder out of its root folder it will cause the editor to freeze if the subfolder has a numerical name.

Steps to Reproduce
  1. Open a the editor (blank project used in test)
  2. Create a folder in the world outliner (Right click empty space > Create folder)
  3. Create a Subfolder (Right click the folder that was created above > Create subfolder)
  4. Rename the Subfolder to "03"
  5. Click and drag the subfolder ABOVE the root folder in the hierarchy (The text "Move to Root" will be shown)

Result: The Editor will freeze (Task manager will be needed to close it)
Expected: The subfolder would be moved out of the root folder

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Affects Versions4.234.22.3
Target Fix4.24
Fix Commit9743443
Main Commit11224363
Release Commit9743426
CreatedOct 7, 2019
ResolvedOct 11, 2019
UpdatedFeb 28, 2020