forward port thread approval workflow into thread

docs/changelog/7.x.x.txt

@@ -47,6 +47,7 @@
  - fixed #4181: hoover help for 'encrypt login' is wrong
  - fixed #4186: search results (macro not expanded in the synopsis field)
  - fixed #4191: Using 3 consecutive tildes in a Post title makes a bad URL/Pos
+ - fixed #8927: Collaboration System: Thread approval workflow setting ignore
 
 7.6.3
  - improved performance of file uploads

lib/WebGUI/Asset/Post/Thread.pm

@@ -248,6 +248,12 @@ sub getArchiveUrl {
 	$self->getUrl("func=archive");
 }
 
+#-------------------------------------------------------------------
+sub getAutoCommitWorkflowId {
+	my $self = shift;
+	return $self->getThread->getParent->get("threadApprovalWorkflow");
+}
+
 #-------------------------------------------------------------------
 sub getLastPost {
 	my $self = shift;