Issue #3467411 by pdureau, G4MBINI: Variants are not loaded when no props in components

src/ComponentPluginManager.php

@@ -120,12 +120,12 @@ class ComponentPluginManager extends SdcPluginManager implements CategorizingPlu
         $definition['props']['properties'][$prop_id]['ui_patterns']['required'] = TRUE;
       }
     }
-    if (!isset($definition['props']['properties'])) {
-      return $definition;
-    }
     if (isset($definition["variants"])) {
       $definition['props']['properties']['variant'] = $this->buildVariantProp($definition);
     }
+    if (!isset($definition['props']['properties'])) {
+      return $definition;
+    }
     foreach ($definition['props']['properties'] as $prop_id => $prop) {
       $definition['props']['properties'][$prop_id] = $this->annotateProp($prop_id, $prop, $fallback_prop_type_id);
     }