Move into nested docroot

web/core/modules/image/image.post_update.php

@@ -0,0 +1,22 @@
+<?php
+
+/**
+ * @file
+ * Post-update functions for Image.
+ */
+
+use Drupal\Core\Entity\Entity\EntityViewDisplay;
+use Drupal\Core\Entity\Entity\EntityFormDisplay;
+
+/**
+ * Saves the image style dependencies into form and view display entities.
+ */
+function image_post_update_image_style_dependencies() {
+  // Merge view and form displays. Use array_values() to avoid key collisions.
+  $displays = array_merge(array_values(EntityViewDisplay::loadMultiple()), array_values(EntityFormDisplay::loadMultiple()));
+  /** @var \Drupal\Core\Entity\Display\EntityDisplayInterface[] $displays */
+  foreach ($displays as $display) {
+    // Re-save each config entity to add missed dependencies.
+    $display->save();
+  }
+}