diff --git a/CHANGELOG.md b/CHANGELOG.md
index 042a384b4db..928bb079964 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,7 @@
 - Element indexes now sort by ID by default, for sources that don’t define a default sort option.
 - Fixed a bug where element indexes were sorting by the first sortable attribute alphabetically by default, rather than the first sortable attribute defined by the element type.
 - Fixed a bug where bulk asset actions where shown as available when subfolders were selected, when they shouldn’t have. ([#16151](https://github.com/craftcms/cms/issues/16151))
+- Fixed a bug where `craft\events\ApplyFieldSaveEvent::$field` wasn’t being set consistently by `craft\services\Fields::EVENT_BEFORE_APPLY_FIELD_SAVE`. ([#16156](https://github.com/craftcms/cms/issues/16156))
 
 ## 4.13.2 - 2024-11-19
 
diff --git a/src/events/ApplyFieldSaveEvent.php b/src/events/ApplyFieldSaveEvent.php
index 6040622d7af..fe1981cc3ef 100644
--- a/src/events/ApplyFieldSaveEvent.php
+++ b/src/events/ApplyFieldSaveEvent.php
@@ -19,8 +19,8 @@
 class ApplyFieldSaveEvent extends Event
 {
     /**
-     * @var FieldInterface|null The field associated with this event, if it already exists
-     * in the database or in memory.
+     * @var FieldInterface|null The field associated with this event, as
+     * configured before the changes are applied to it (if it already exists).
      */
     public ?FieldInterface $field;
 
diff --git a/src/services/Fields.php b/src/services/Fields.php
index 55288473999..ebd50cfb2f0 100644
--- a/src/services/Fields.php
+++ b/src/services/Fields.php
@@ -1571,20 +1571,15 @@ public function applyFieldSave(string $fieldUid, array $data, string $context):
         $groupRecord = $groupUid ? $this->_getGroupRecord($groupUid) : null;
         $isNewField = $fieldRecord->getIsNewRecord();
         $oldSettings = $fieldRecord->getOldAttribute('settings');
+        $oldField = !$isNewField ? $this->getFieldById($fieldRecord->id) : null;
 
         // For control panel save requests, make sure we have all the custom data already saved on the object.
-        if (isset($this->_savingFields[$fieldUid])) {
-            $field = $this->_savingFields[$fieldUid];
-        } elseif (!$isNewField) {
-            $field = $this->getFieldById($fieldRecord->id);
-        } else {
-            $field = null;
-        }
+        $field = $this->_savingFields[$fieldUid] ?? $oldField;
 
         // Fire a 'beforeApplyFieldSave' event
         if ($this->hasEventHandlers(self::EVENT_BEFORE_APPLY_FIELD_SAVE)) {
             $this->trigger(self::EVENT_BEFORE_APPLY_FIELD_SAVE, new ApplyFieldSaveEvent([
-                'field' => $field,
+                'field' => $oldField,
                 'config' => $data,
             ]));
         }