chore: Update Core to a8150d5c (+job ordering update) (#1513)

Author: mjameswh

CONTRIBUTING.md

@@ -29,10 +29,10 @@ We welcome contributions from the community. To contribute, please start by open
 
 The current maintainers are:
 
-- [Roey `bergundy`](https://github.com/bergundy)
-- [James `mjameswh`](https://github.com/mjameswh)
+- [James Waktins-Harvey](https://github.com/mjameswh)
+- [Antonio Lain](https://github.com/antlai-temporal)
 
-If you'd like to join us, [email Roey](mailto:roey@temporal.io). We'd be happy to have help with any of these things:
+If you'd like to give a hand, pelase reach us on our [community Slack workspace](https://temporalio.slack.com/channels/typescript-sdk). We'd be happy to have help with any of these things:
 
 - Triaging issues
 - Reviewing PRs

packages/common/src/converter/payload-converter.ts

@@ -87,8 +87,8 @@ export function arrayFromPayloads(converter: PayloadConverter, payloads?: Payloa
 export function mapFromPayloads<K extends string>(
   converter: PayloadConverter,
   map?: Record<K, Payload> | null | undefined
-): Record<K, unknown> | undefined | null {
-  if (map == null) return map;
+): Record<K, unknown> | undefined {
+  if (map == null) return undefined;
   return Object.fromEntries(
     Object.entries(map).map(([k, payload]): [K, unknown] => {
       const value = converter.fromPayload(payload as Payload);

packages/common/src/internal-non-workflow/codec-helpers.ts

@@ -122,7 +122,7 @@ export async function decodeOptionalMap(
 ): Promise<Record<string, DecodedPayload> | null | undefined> {
   if (payloads == null) return payloads;
   return Object.fromEntries(
-    await Promise.all(Object.entries(payloads).map(async ([k, v]) => [k, await decode(codecs, [v])]))
+    await Promise.all(Object.entries(payloads).map(async ([k, v]) => [k, (await decode(codecs, [v]))[0]]))
   );
 }
 

packages/core-bridge/Cargo.lock

@@ -115,7 +115,7 @@ if (RUN_INTEGRATION_TESTS) {
       workflowType: 'sinksWorkflow',
       lastFailure: undefined,
       lastResult: undefined,
-      memo: undefined,
+      memo: {},
       parent: undefined,
       searchAttributes: {},
       historyLength: 3,