Merge pull request #4728 from Laravel-Backpack/fix-attribute-infering

Author: tabacitu

src/app/Library/CrudPanel/Traits/Relationships.php

@@ -368,6 +368,10 @@ private function modelMethodIsRelationship($model, $method)
      */
     private function isAttributeInRelationString($relationString)
     {
+        if (! str_contains($relationString, '.')) {
+            return false;
+        }
+
         $parts = explode('.', $relationString);
 
         $model = $this->model;