From: Chris Duncan <chris@zoso.dev>
Date: Sat, 9 Aug 2025 06:52:22 +0000 (-0700)
Subject: Fix change block link checking.
X-Git-Tag: v0.10.5~41^2~157
X-Git-Url: https://git.codecow.com/?a=commitdiff_plain;h=86f18d3c8ebed8a605f36aa0e57180807694749b;p=libnemo.git

Fix change block link checking.
---

diff --git a/src/lib/block.ts b/src/lib/block.ts
index 8bdbaeb..90d8110 100644
--- a/src/lib/block.ts
+++ b/src/lib/block.ts
@@ -54,12 +54,16 @@ export class Block {
 			}
 		}
 		if (b.subtype === 'change') {
-			if (b.link == null) {
+			const { link } = b
+			if (link == null) {
 				throw new Error('Change block link missing')
 			}
-			if (+(b.link) !== 0) {
+			if (!(link instanceof Uint8Array)) {
 				throw new Error('Invalid change block link')
 			}
+			if (link.some(b => b !== 0)) {
+				throw new Error('Change block link must be zero')
+			}
 		}
 	}