Fix group filter trim

[skjnldsv]

Fix #1731

[codecov]

Codecov Report

Merging #1732 into master will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##             master    #1732   +/-   ##
=========================================
  Coverage     35.35%   35.35%           
  Complexity      101      101           
=========================================
  Files            15       15           
  Lines           280      280           
=========================================
  Hits             99       99           
  Misses          181      181           

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