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-rw-r--r--test/unit/custom_field_test.rb2
1 files changed, 1 insertions, 1 deletions
diff --git a/test/unit/custom_field_test.rb b/test/unit/custom_field_test.rb
index e0f08f6c0..d830677c2 100644
--- a/test/unit/custom_field_test.rb
+++ b/test/unit/custom_field_test.rb
@@ -107,7 +107,7 @@ class CustomFieldTest < ActiveSupport::TestCase
def test_possible_values_should_return_utf8_encoded_strings
field = CustomField.new
- s = "Value".force_encoding('BINARY')
+ s = (+"Value").force_encoding('BINARY')
field.possible_values = s
assert_equal [s], field.possible_values
assert_equal 'UTF-8', field.possible_values.first.encoding.name