fix regression from cherry pick 4eaed34561020ad4eee19fbe7ad5da25868cda7c on branch 5.2

1 files changed, 2 insertions, 2 deletions

diff --git a/lib/models/SimpleORMap.class.php b/lib/models/SimpleORMap.class.php
index acc7a3b..fa23746 100644
--- a/lib/models/SimpleORMap.class.php
+++ b/lib/models/SimpleORMap.class.php
@@ -1009,8 +1009,8 @@ class SimpleORMap implements ArrayAccess, Countable, IteratorAggregate
                 }
             }
         }
-        foreach ($this->alias_fields() as $alias => $field) {
-            if (isset($this->db_fields()[$field])) {
+        foreach ($this->alias_fields as $alias => $field) {
+            if (isset($this->db_fields[$field])) {
                 $this->content[$alias] =& $this->content[$field];
                 $this->content_db[$alias] =& $this->content_db[$field];
             }