[stable7.0] fix: show error on empty group name

[backportbot]

Backport of PR #4322

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 3 lines in your changes missing coverage. Please review.

Project coverage is 11.12%. Comparing base (308d663) to head (0baf96b).
Report is 2 commits behind head on stable7.0.

Files with missing lines	Patch %	Lines
src/components/AppNavigation/RootNavigation.vue	0.00%	3 Missing ⚠️

Additional details and impacted files

@@               Coverage Diff               @@
##             stable7.0    #4329      +/-   ##
===============================================
- Coverage        11.13%   11.12%   -0.01%     
  Complexity         265      265              
===============================================
  Files              121      121              
  Lines             5542     5545       +3     
  Branches          1200     1201       +1     
===============================================
  Hits               617      617              
- Misses            4804     4807       +3     
  Partials           121      121              

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