Make sure to set the id property too

Author: Andy Raines

src/JsonSchema/RefResolver.php

@@ -121,6 +121,11 @@ public function resolve($schema, $sourceUri = null)
             return;
         }
 
+        // Fill in id property
+        if ($sourceUri) {
+            $schema->id = $sourceUri;
+        }
+
         // First determine our resolution scope
         $scope = $this->getResolutionScope($schema, $sourceUri);