Minor enhancement to location processing

wiki-map.pl

@@ -168,12 +168,16 @@ foreach my $page (values %{$location_query_results->{query}{pages}})
 	my $region_name = $parsed_template->{positional_params}[1];
 	$regions_by_subregion{$location->{name}} = $region_name;
 
-	push @location_continuations, sub
-	{
-		return unless $parsed_template->{positional_params}[0] =~ $coords_regex;
+	next unless $parsed_template->{positional_params}[0] =~ $coords_regex;
 	my ($nw, $sw) = ($1, $2);
 	$location->make_tile_at($nw, $sw);
+
 	if($regiondir)
+	{
+		# Locations can have their own images rendered, given a list of context tiles
+		# To reference these tiles, they must exist in the parent grid,
+		# so the remainder of the processing must happen after the region tile pages are processed
+		push @location_continuations, sub
 		{
 			my @coords_list = ({ nw => $nw, sw => $sw});
 			foreach my $coords (split /;/, $parsed_template->{named_params}{context_tiles})