Fixes #19190

extensions/markdown/src/extension.ts

@@ -58,7 +58,14 @@ export function activate(context: vscode.ExtensionContext) {
 		const sourceUri = vscode.Uri.parse(decodeURIComponent(uri));
 		return vscode.workspace.openTextDocument(sourceUri)
 			.then(document => vscode.window.showTextDocument(document))
-			.then(editor => vscode.commands.executeCommand('revealLine', { lineNumber: Math.floor(line), at: 'top' }));
+			.then(editor => vscode.commands.executeCommand('revealLine', { lineNumber: Math.floor(line), at: 'top' }).then(() => editor))
+			.then(editor => {
+				if (editor) {
+					editor.selection = new vscode.Selection(
+						new vscode.Position(Math.floor(line), 0),
+						new vscode.Position(Math.floor(line), 0));
+				}
+			});
 	}));
 
 	context.subscriptions.push(vscode.workspace.onDidSaveTextDocument(document => {