fix wrong condition #75

Job	Run time
Unit Tests (ubuntu, 2.7, gemfiles/rails_6_0.gemfile, false)	30s
Unit Tests (ubuntu, 2.7, gemfiles/rails_6_1.gemfile, false)	37s
Unit Tests (ubuntu, 2.7, gemfiles/rails_7_0.gemfile, false)	36s
Unit Tests (ubuntu, 3, gemfiles/rails_6_0.gemfile, false)	12s
Unit Tests (ubuntu, 3, gemfiles/rails_6_1.gemfile, false)	10s
Unit Tests (ubuntu, 3, gemfiles/rails_7_0.gemfile, false)	18s
Unit Tests (ubuntu, 3.1, gemfiles/rails_6_0.gemfile, false)	11s
Unit Tests (ubuntu, 3.1, gemfiles/rails_6_1.gemfile, false)	16s
Unit Tests (ubuntu, 3.1, gemfiles/rails_7_0.gemfile, false)	14s
Unit Tests (ubuntu, 3.2, gemfiles/rails_6_0.gemfile, false)	16s
Unit Tests (ubuntu, 3.2, gemfiles/rails_6_1.gemfile, false)	16s
Unit Tests (ubuntu, 3.2, gemfiles/rails_7_0.gemfile, false)	11s
Unit Tests (ubuntu, jruby, gemfiles/rails_6_0.gemfile, false)	1m 12s
Unit Tests (ubuntu, jruby, gemfiles/rails_6_1.gemfile, false)	51s
Unit Tests (ubuntu, ruby-head, gemfiles/rails_7_0.gemfile, true)	17s
Unit Tests (ubuntu, jruby-head, gemfiles/rails_7_0.gemfile, true)	1m 7s
	7m 14s

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