Issue #3005028 by eiriksm: in_array('inline_entity_form',...

Issue #3005028 by eiriksm: in_array('inline_entity_form', $element['#array_parents']) can return false positive

src/Plugin/Field/FieldWidget/ImageCanvasEditorWidget.php

@@ -107,7 +107,14 @@ class ImageCanvasEditorWidget extends ImageWidget {
       // Find the form mode.
       // @todo: This seems a bit hacky.
       $form_mode = 'default';
-      if (in_array('inline_entity_form', $element['#array_parents'])) {
+      $is_inline = FALSE;
+      foreach ($element['#array_parents'] as $parent_name) {
+        if ($parent_name === 'inline_entity_form') {
+          $is_inline = TRUE;
+          break;
+        }
+      }
+      if ($is_inline) {
         $inline_form = NestedArray::getValue($form, array_slice($element['#array_parents'], 0, 4));
         $form_mode = $inline_form['#form_mode'];
       }