Prevent undefined property errors (#877)

If the property name matches the foreign key name
creating a BelongsTo relation triggers an undefined
property error. Disabling constraints prevents
accessing the property and thus prevents the error.

tests/Console/ModelsCommand/Relations/Models/Simple.php

@@ -62,4 +62,9 @@ class Simple extends Model
     {
         return $this->belongsTo(AnotherModel::class);
     }
+
+    public function relationBelongsToSameNameAsColumn(): BelongsTo
+    {
+        return $this->belongsTo(AnotherModel::class, __FUNCTION__);
+    }
 }