Check for blank values, not just an empty string

On my machine the integration test "Editing a Public Body can add a
translation for multiple locales" (http://git.io/vvv9t) was failing
because when it submitted the form to update one locale it created
empty records for all locales resulting in the test
(http://git.io/vvv93) for a nil locale to fail.

It was doing this because when it submitted the form it included a
notes field with a single newline character and so this method
evaluated as false and therefore a largely blank translation was
created.

1 files changed, 1 insertions, 1 deletions

diff --git a/app/models/public_body.rb b/app/models/public_body.rb
index 232c0ffa1..e1d748582 100644
--- a/app/models/public_body.rb
+++ b/app/models/public_body.rb
@@ -775,7 +775,7 @@ class PublicBody < ActiveRecord::Base
 
     def empty_translation_in_params?(attributes)
         attrs_with_values = attributes.select do |key, value|
-            value != '' and key.to_s != 'locale'
+            !value.blank? and key.to_s != 'locale'
         end
         attrs_with_values.empty?
     end