got this big error after a drupal upgrade to drupal 8.7:

Notice: Undefined index: width in Drupal\content_translation\Plugin\Validation\Constraint\ContentTranslationSynchronizedFieldsConstraintValidator->hasSynchronizedPropertyChanges() (line 153 of core/modules/content_translation/src/Plugin/Validation/Constraint/ContentTranslationSynchronizedFieldsConstraintValidator.php).

Solution

Add the following patch

"patches": {
    "drupal/menu_block": {
        "Make menu follow active item": "https://www.drupal.org/files/issues/2018-08-08/menu_block-follow-2756675-55.patch"
    },
    "drupal/term_reference_tree": {
        "Sql bug drupal 8.6": "https://www.drupal.org/files/issues/2018-10-25/term_reference_tree-taxonomy_term_hierarchy_table_error-2996263-20.patch",
        "fix errors when empty in twig": "patches/term-reference-tree-twig-error.patch"
    },
    "drupal/core": {
        "Form errors on node creation": "https://www.drupal.org/files/issues/2019-01-04/3023924-form-8.patch",
        "Error after saving node drupal 8.7 issue": "https://www.drupal.org/files/issues/2019-02-11/ignore_width_height_on_untranslatable_field_comparision_2941092_8.patch"
    },
    "drupal/search_api_autocomplete": {
        "Add content type to resultrow": "patches/autocomplete-suggestion-add-bundle.patch"
    }
},