Environment

• TeXstudio: 4.9.0 (Appimage)
• Qt: 5.15.3
• OS: Linux (Mageia 9)
• TeX distribution: irrelevant

Expected behavior

Most used and favorite math symbols inserted from the left tab shouldn't be doubled

Actual behavior

With French as Language (!) (and not English), when math symbols are inserted from the “Symbols” left tab they are doubled (and erratically inserted) in the “Most Used” area, and doubled in the “Favorites” area.

How to reproduce

Switch to French language, open e new document, go to the “Symbols” left tab, right click on any symbol (add to Most Used) and right click on any symbol (add it as a Favorites).