Fix Local PR branches for .dev (#6382)

Fixes #6373

Author: alexr00

src/api/api.d.ts

@@ -185,7 +185,7 @@ export interface Repository {
 	getBranches(query: BranchQuery): Promise<Ref[]>;
 	getBranchBase(name: string): Promise<Branch | undefined>;
 	setBranchUpstream(name: string, upstream: string): Promise<void>;
-	getRefs(query: RefQuery, cancellationToken?: CancellationToken): Promise<Ref[]>;
+	getRefs?(query: RefQuery, cancellationToken?: CancellationToken): Promise<Ref[]>; // Optional, because Remote Hub doesn't support this
 
 	getMergeBase(ref1: string, ref2: string): Promise<string>;
 

src/github/folderRepositoryManager.ts

@@ -868,7 +868,7 @@ export class FolderRepositoryManager implements vscode.Disposable {
 	async getLocalPullRequests(): Promise<PullRequestModel[]> {
 		const githubRepositories = this._githubRepositories;
 
-		if (!githubRepositories || !githubRepositories.length) {
+		if (!githubRepositories || !githubRepositories.length || !this.repository.getRefs) {
 			return [];
 		}