Shortens shas for display in explorer UIs

src/gitService.ts

@@ -693,7 +693,7 @@ export class GitService extends Disposable {
     private static _toReferenceGitContentUri(commit: GitCommit, scheme: DocumentSchemes, commitCount: number, data: IGitUriData) {
         const pad = (n: number) => ('0000000' + n).slice(-('' + commitCount).length);
         const ext = path.extname(data.fileName);
-        const uriPath = `${path.relative(commit.repoPath, data.fileName.slice(0, -ext.length))}/${commit.sha}${ext}`;
+        const uriPath = `${path.relative(commit.repoPath, data.fileName.slice(0, -ext.length))}/${commit.shortSha}${ext}`;
 
         let message = commit.message;
         if (message.length > 50) {