Bug fix: mtypes_array was filled differently here in the PHP version, use mtype_keys instead.

backend/newimageid_ez.in

@@ -476,8 +476,8 @@ if (!$isadmin && defined($node_id)) {
     while (my ($ntype) = $query_result->fetchrow_array()) {
 	$otypes{$ntype} = 1;
     }
-    # Flag invalid node types.
-    foreach my $ntype (@mtypes_array) {
+    foreach my $ntype (@mtype_keys) {
+        $ntype =~ s/^mtype_//;
 	if (!exists($otypes{$ntype})) {
 	    UserError("Node Types: Current image on $node_id".
 		      " cannot run on node type $ntype");