Fix multiple self-referencing eager loads failing to join multiple times

[#4679 state:committed]

Signed-off-by: Jeremy Kemper <jeremy@bitsweat.net>

1 files changed, 2 insertions, 2 deletions

diff --git a/activerecord/lib/active_record/associations.rb b/activerecord/lib/active_record/associations.rb
index 95d76ae456..c1e16d08cb 100755
--- a/activerecord/lib/active_record/associations.rb
+++ b/activerecord/lib/active_record/associations.rb
@@ -1903,7 +1903,7 @@ module ActiveRecord
             end
 
             def ==(other)
-              other.is_a?(JoinBase) &&
+              other.class == self.class &&
               other.active_record == active_record &&
               other.table_joins == table_joins
             end
@@ -1974,7 +1974,7 @@ module ActiveRecord
             end
 
             def ==(other)
-              other.is_a?(JoinAssociation) &&
+              other.class == self.class &&
               other.reflection == reflection &&
               other.parent == parent
             end