AccountId20.eq should not fail on null/undefined (#5560)

* AccountId20.eq should not fail on null/undefined

* CHANGELOG

CHANGELOG.md

@@ -5,6 +5,7 @@
 Contributed:
 
 - Add support for new Frontier `AccountId20` mapping (Thanks to https://github.com/koushiro)
+- Adjust MMR RPCs & runtime calls to align with latest (Thanks to https://github.com/Lederstrumpf)
 
 Changes:
 
@@ -12,6 +13,7 @@ Changes:
 - Adjust signing header retrieval, catering for discarded state fallbacks
 - Basic support for markdown generation for different chains (only Kusama & Polkadot currently added)
 - Add not-to-be-used `ISize` type support (same as `USize`, throwing on use - added for completeness)
+- Ensure `AccountId20.eq` does not fail on null/undefined inputs
 - Expand tests around `toU8a()` where the `isBare` flag is is being used
 
 

packages/types/src/ethereum/AccountId.ts

@@ -36,7 +36,7 @@ export class GenericEthereumAccountId extends U8aFixed {
    * @description Compares the value of the input to see if there is a match
    */
   public override eq (other?: unknown): boolean {
-    return super.eq(decodeAccountId(other as AnyU8a));
+    return !!other && super.eq(decodeAccountId(other as AnyU8a));
   }
 
   /**