fixup! fixup! Replace source with __unstableBlockSource

WordPress · Mar 11, 2022 · 14a881a · 14a881a
1 parent d5ae184
commit 14a881a
Showing 1 changed file with 5 additions and 2 deletions.
diff --git a/packages/blocks/src/api/parser/index.js b/packages/blocks/src/api/parser/index.js
@@ -245,8 +245,11 @@ export function parseRawBlock( rawBlock ) {
 
 	if ( ! updatedBlock.isValid ) {
 		// Preserve the original unprocessed version of the block
-		// that we received so that we can preserve it in its
-		// existing state when we save.
+		// that we received (no fixes, no deprecations) so that
+		// we can save it as close to exactly the same way as
+		// we loaded it. This is important to avoid corruption
+		// and data loss caused by block implementations trying
+		// to process data that isn't fully recognized.
 		updatedBlock.__unstableBlockSource = rawBlock;
 	}