fix: DB slaves were not being instanciated correctly.

docs/changelog/7.x.x.txt

@@ -18,6 +18,7 @@
         appropriately. This fixes the problem with CS posts sent via
         e-mail showing two versions of the same post.
  - fix: Styles were printing double head block headers.
+ - fix: DB slaves were not being instanciated correctly.
         
 7.3.3
  - fix: Wiki Purge throws fatal

lib/WebGUI/Session.pm

@@ -186,7 +186,7 @@ sub dbSlave {
 		foreach (1..3) {
 			my $slave = $self->config->get("dbslave".$_);
 			if (exists $slave->{dsn}) {
-				push(@{$self->{_slave}},$self->db->connect($self, $slave->{dsn},$slave->{user},$slave->{pass}));
+				push(@{$self->{_slave}},WebGUI::SQL->connect($self, $slave->{dsn},$slave->{user},$slave->{pass}));
 			}
 		}
 	}