delete a duplicate filename candidate

Dependencies

• [2] RQUVBX62 filter candidates in file navigator
• [3] KKMFQDR4 editing source code from within the app
• [4] QZ2SXLHF some debug prints

Change contents

• edit in source.lua at line 15
  [2.35]→[3.12:26](∅→∅),[3.166044]→[3.12:26](∅→∅)
  − 'main',