fix(github): Reconcile entire GraphQL pages (#25311)

lib/util/github/graphql/cache-strategies/abstract-cache-strategy.ts

@@ -110,9 +110,13 @@ export abstract class AbstractGithubGraphqlCacheStrategy<
 
       // If we reached previously stored item that is stabilized,
       // we assume the further pagination will not yield any new items.
+      //
+      // However, we don't break the loop here, allowing to reconcile
+      // the entire page of items. This protects us from unusual cases
+      // when release authors intentionally break the timeline. Therefore,
+      // while it feels appealing to break early, please don't do that.
       if (oldItem && this.isStabilized(oldItem)) {
         isPaginationDone = true;
-        break;
       }
 
       // Check if item is new or updated

lib/util/github/graphql/cache-strategies/memory-cache-strategy.spec.ts

@@ -133,7 +133,7 @@ describe('util/github/graphql/cache-strategies/memory-cache-strategy', () => {
     expect(isPaginationDone).toBe(true);
   });
 
-  it('reconciles only not stabilized items in page', async () => {
+  it('reconciles entire page', async () => {
     const oldItems = {
       '1': { releaseTimestamp: isoTs('2020-01-01 00:00'), version: '1' },
       '2': { releaseTimestamp: isoTs('2020-01-01 01:00'), version: '2' },
@@ -161,9 +161,9 @@ describe('util/github/graphql/cache-strategies/memory-cache-strategy', () => {
     expect(isPaginationDone).toBe(true);
     expect(memCache.get('github-graphql-cache:foo:bar')).toMatchObject({
       items: {
-        '1': { releaseTimestamp: isoTs('2020-01-01 00:00') },
-        '2': { releaseTimestamp: isoTs('2020-01-01 01:00') },
-        '3': { releaseTimestamp: isoTs('2020-01-01 02:00') },
+        '1': { releaseTimestamp: isoTs('2022-12-31 10:00') },
+        '2': { releaseTimestamp: isoTs('2022-12-31 11:00') },
+        '3': { releaseTimestamp: isoTs('2022-12-31 12:00') },
         '4': { releaseTimestamp: isoTs('2022-12-31 13:00') },
       },
     });