Revert "Merge pull request #34538 from bogdan/reuse-find-target"

This reverts commit f2ab8b64d4, reversing
changes made to b9c7305dbe.

Reason: `scope.take` is not the same with `scope.to_a.first`.

activerecord/lib/active_record/associations/association.rb

@@ -179,23 +179,6 @@ module ActiveRecord
       end
 
       private
-
-        def find_target
-          scope = self.scope
-          return scope.to_a if skip_statement_cache?(scope)
-
-          conn = klass.connection
-          sc = reflection.association_scope_cache(conn, owner) do |params|
-            as = AssociationScope.create { params.bind }
-            target_scope.merge!(as.scope(self))
-          end
-
-          binds = AssociationScope.get_bind_values(owner, reflection.chain)
-          sc.execute(binds, conn) do |record|
-            set_inverse_instance(record)
-          end
-        end
-
         # The scope for this association.
         #
         # Note that the association_scope is merged into the target_scope only when the

activerecord/lib/active_record/associations/collection_association.rb

@@ -303,6 +303,21 @@ module ActiveRecord
       end
 
       private
+        def find_target
+          scope = self.scope
+          return scope.to_a if skip_statement_cache?(scope)
+
+          conn = klass.connection
+          sc = reflection.association_scope_cache(conn, owner) do |params|
+            as = AssociationScope.create { params.bind }
+            target_scope.merge!(as.scope(self))
+          end
+
+          binds = AssociationScope.get_bind_values(owner, reflection.chain)
+          sc.execute(binds, conn) do |record|
+            set_inverse_instance(record)
+          end
+        end
 
         # We have some records loaded from the database (persisted) and some that are
         # in-memory (memory). The same record may be represented in the persisted array

activerecord/lib/active_record/associations/singular_association.rb

@@ -31,17 +31,24 @@ module ActiveRecord
       end
 
       private
-
-        def target_scope
-          super.limit!(1)
-        end
-
         def scope_for_create
           super.except!(klass.primary_key)
         end
 
         def find_target
-          super.first
+          scope = self.scope
+          return scope.take if skip_statement_cache?(scope)
+
+          conn = klass.connection
+          sc = reflection.association_scope_cache(conn, owner) do |params|
+            as = AssociationScope.create { params.bind }
+            target_scope.merge!(as.scope(self)).limit(1)
+          end
+
+          binds = AssociationScope.get_bind_values(owner, reflection.chain)
+          sc.execute(binds, conn) do |record|
+            set_inverse_instance record
+          end.first
         rescue ::RangeError
           nil
         end