Add check for lightbox values during image block migration (#56057)

WordPress · Nov 13, 2023 · 901dc7d · 901dc7d
1 parent 8ecddc9
commit 901dc7d
Showing 1 changed file with 8 additions and 0 deletions.
diff --git a/packages/block-library/src/image/deprecated.js b/packages/block-library/src/image/deprecated.js
@@ -1047,6 +1047,14 @@ const v8 = {
 		},
 	},
 	migrate( { width, height, ...attributes } ) {
+		// We need to perform a check here because in cases
+		// where attributes are added dynamically to blocks,
+		// block invalidation overrides the isEligible() method
+		// and forces the migration to run, so it's not guaranteed
+		// that `behaviors` or `behaviors.lightbox` will be defined.
+		if ( ! attributes.behaviors?.lightbox ) {
+			return attributes;
+		}
 		const {
 			behaviors: {
 				lightbox: { enabled },