find_target

# File activerecord/lib/active_record/associations/singular_association.rb, line 38
        def find_target
          return scope.take if skip_statement_cache?

          conn = klass.connection
          sc = reflection.association_scope_cache(conn, owner) do
            StatementCache.create(conn) { |params|
              as = AssociationScope.create { params.bind }
              target_scope.merge(as.scope(self, conn)).limit(1)
            }
          end

          binds = AssociationScope.get_bind_values(owner, reflection.chain)
          sc.execute(binds, klass, conn) do |record|
            set_inverse_instance record
          end.first
        rescue ::RangeError
          nil
        end