Relax default_value_for in Gemfile

debian/patches/0050-relax-stable-libs.patch

@@ -3,6 +3,15 @@ gitlab Gemfile
 
 --- a/Gemfile
 +++ b/Gemfile
+@@ -5,7 +5,7 @@
+ 
+ gem_versions = {}
+ gem_versions['activerecord_sane_schema_dumper'] = rails5? ? '1.0'      : '0.2'
+-gem_versions['default_value_for']               = rails5? ? '~> 3.0.5' : '~> 3.0.0'
++gem_versions['default_value_for']               = rails5? ? '~> 3.0.5' : '~> 3.0'
+ gem_versions['rails']                           = rails5? ? '5.0.6'    : '4.2.10'
+ gem_versions['rails-i18n']                      = rails5? ? '~> 5.1'   : '~> 4.0.9'
+ # --- The end of special code for migrating to Rails 5.0 ---
 @@ -13,12 +13,12 @@
  source 'https://rubygems.org'