'TestRuns[n].TestSteps[r].Comment' mapping is not resolved in javascript

#{for testruns}
#{for r=TestRuns[n].TestStepsCount} -> works
%{'${TestRuns[n].TestSteps[r].StepNumber}'} -> works
%{'${TestRuns[n].TestSteps[r].Step}'} -> works
%{'${TestRuns[n].TestSteps[r].Data}'} -> works
%{'${TestRuns[n].TestSteps[r].ExpectedResult}'} -> works
%{'${ TestRuns[n].TestSteps[r].Comment}'} -> doesn't work
%{'${TestRuns[n].TestSteps[r].Status}'} -> works
#{end}
#{end}