diff --git a/apps/dashboard/src/lib/github-cache.ts b/apps/dashboard/src/lib/github-cache.ts
index de0e940..4c8a1bf 100644
--- a/apps/dashboard/src/lib/github-cache.ts
+++ b/apps/dashboard/src/lib/github-cache.ts
@@ -71,6 +71,7 @@ type GetOrRevalidateGitHubResourceOptions<TData> = {
 	getNamespaceVersions?: (
 		namespaceKeys: string[],
 	) => Promise<Record<string, number>>;
+	merge?: (existing: TData, fresh: TData) => TData;
 	now?: () => number;
 };
 
@@ -615,6 +616,7 @@ export async function getOrRevalidateGitHubResource<TData>({
 	cacheMode = "legacy",
 	payloadRetentionSeconds = DEFAULT_GITHUB_PAYLOAD_RETENTION_SECONDS,
 	fetcher,
+	merge,
 	now = Date.now,
 	store,
 	payloadStore,
@@ -755,6 +757,14 @@ export async function getOrRevalidateGitHubResource<TData>({
 			return parseCachedPayload<TData>(existingEntry.payloadJson);
 		}
 
+		const mergedData =
+			merge && existingEntry
+				? merge(
+						parseCachedPayload<TData>(existingEntry.payloadJson),
+						result.data,
+					)
+				: result.data;
+
 		const nextEntry = {
 			cacheKey,
 			userId,
@@ -762,7 +772,7 @@ export async function getOrRevalidateGitHubResource<TData>({
 			paramsJson,
 			etag: result.metadata.etag,
 			lastModified: result.metadata.lastModified,
-			payloadJson: JSON.stringify(result.data),
+			payloadJson: JSON.stringify(mergedData),
 			fetchedAt: currentTime,
 			freshUntil:
 				currentTime +
@@ -780,7 +790,7 @@ export async function getOrRevalidateGitHubResource<TData>({
 			payloadRetentionSeconds,
 		});
 
-		return result.data;
+		return mergedData;
 	})();
 
 	resolvedInFlightCache?.set(cacheKey, task);
diff --git a/apps/dashboard/src/lib/github.functions.ts b/apps/dashboard/src/lib/github.functions.ts
index 1ee394f..6d29eb0 100644
--- a/apps/dashboard/src/lib/github.functions.ts
+++ b/apps/dashboard/src/lib/github.functions.ts
@@ -3787,20 +3787,13 @@ async function getMySearchSources(
 	deadlineAt: number,
 ): Promise<GitHubGraphQLSearchSource[]> {
 	let installations: GitHubAppInstallation[] = [];
-	let organizations: GitHubOrganization[] = [];
 	try {
-		const [installationResult, organizationResult] =
-			await withGitHubOperationTimeout(
-				"github search source discovery",
-				getRemainingSearchTimeoutMs(deadlineAt, MY_SEARCH_SOURCE_TIMEOUT_MS),
-				() =>
-					Promise.all([
-						getGitHubAppUserInstallations(context.session.user.id),
-						getGitHubAuthenticatedOrganizations(context),
-					]),
-			);
+		const installationResult = await withGitHubOperationTimeout(
+			"github search source discovery",
+			getRemainingSearchTimeoutMs(deadlineAt, MY_SEARCH_SOURCE_TIMEOUT_MS),
+			() => getGitHubAppUserInstallations(context.session.user.id),
+		);
 		installations = installationResult.installations;
-		organizations = organizationResult;
 	} catch (error) {
 		console.error("[github-search] failed to discover search sources", error);
 	}
@@ -3808,13 +3801,6 @@ async function getMySearchSources(
 	const sources: GitHubGraphQLSearchSource[] = [];
 	const excludedOAuthOwners = new Map<string, GitHubSearchOwnerScope>();
 
-	for (const organization of organizations) {
-		addExcludedOwnerScope(excludedOAuthOwners, {
-			login: organization.login,
-			targetType: "Organization",
-		});
-	}
-
 	for (const installation of installations) {
 		const owner = toSearchOwnerScope(installation);
 		if (!owner) {
@@ -3832,17 +3818,6 @@ async function getMySearchSources(
 			break;
 		}
 
-		if (owner.targetType === "Organization") {
-			addExcludedOwnerScope(excludedOAuthOwners, owner);
-		}
-		if (
-			owner.targetType === "User" &&
-			installation.repositorySelection === "all" &&
-			normalizeLogin(owner.login) === normalizeLogin(viewerLogin)
-		) {
-			addExcludedOwnerScope(excludedOAuthOwners, owner);
-		}
-
 		const installationContext = await withGitHubOperationTimeout(
 			`github installation context ${installation.id}`,
 			contextTimeoutMs,
@@ -3859,6 +3834,17 @@ async function getMySearchSources(
 			continue;
 		}
 
+		if (owner.targetType === "Organization") {
+			addExcludedOwnerScope(excludedOAuthOwners, owner);
+		}
+		if (
+			owner.targetType === "User" &&
+			installation.repositorySelection === "all" &&
+			normalizeLogin(owner.login) === normalizeLogin(viewerLogin)
+		) {
+			addExcludedOwnerScope(excludedOAuthOwners, owner);
+		}
+
 		sources.push({
 			label: `installation:${installation.id}:${owner.login}`,
 			context: installationContext,
@@ -3959,6 +3945,7 @@ async function getMyPullsResult({
 		signalKeys: [githubRevalidationSignalKeys.pullsMine],
 		namespaceKeys: [githubRevalidationSignalKeys.pullsMine],
 		cacheMode: "split",
+		merge: (existing, fresh) => mergeMyPullsResults([existing, fresh]),
 		fetcher: async () => {
 			const deadlineAt = Date.now() + MY_SEARCH_TOTAL_TIMEOUT_MS;
 			const sources = await getMySearchSources(context, username, deadlineAt);
@@ -4130,6 +4117,7 @@ async function getMyIssuesResult({
 		signalKeys: [githubRevalidationSignalKeys.issuesMine],
 		namespaceKeys: [githubRevalidationSignalKeys.issuesMine],
 		cacheMode: "split",
+		merge: (existing, fresh) => mergeMyIssuesResults([existing, fresh]),
 		fetcher: async () => {
 			const deadlineAt = Date.now() + MY_SEARCH_TOTAL_TIMEOUT_MS;
 			const sources = await getMySearchSources(context, username, deadlineAt);