MONGOID-5190 Respect persistence options on auto-saved associations (#5283)

* MONGOID-5190 Respect persistence options on auto-saved associations

* MONGOID-5190 unpend test and fix test

* MONGOID-5190 format

* Update lib/mongoid/clients/options.rb

Author: neilshweky

lib/mongoid/association/referenced/auto_save.rb

@@ -56,7 +56,8 @@ def self.define_autosave!(association)
                 __autosaving__ do
                   if assoc_value = ivar(association.name)
                     Array(assoc_value).each do |doc|
-                      doc.with(persistence_context) do |d|
+                      pc = doc.persistence_context? ? doc.persistence_context : persistence_context
+                      doc.with(pc) do |d|
                         d.save
                       end
                     end

lib/mongoid/clients/options.rb

@@ -45,6 +45,10 @@ def persistence_context
             PersistenceContext.new(self.class)
       end
 
+      def persistence_context?
+        !!(PersistenceContext.get(self) || PersistenceContext.get(self.class))
+      end
+
       private
 
       def set_persistence_context(options_or_context)

spec/mongoid/association/referenced/belongs_to/proxy_spec.rb

@@ -322,8 +322,6 @@
           end
 
           it 'applies the persistence options when saving the child' do
-            pending 'https://jira.mongodb.org/browse/MONGOID-5190'
-
             expect(other_people_count).to eq(1)
             expect(other_posts_count).to eq(1)
           end