Fix #1792 . (#1793)

Author: sean-mcmanus

Extension/src/LanguageServer/clientCollection.ts

@@ -8,6 +8,7 @@ import * as vscode from 'vscode';
 import * as util from '../common';
 import * as telemetry from '../telemetry';
 import * as cpptools from './client';
+import * as path from 'path';
 
 const defaultClientKey: string = "@@default@@";
 export interface ClientKey {
@@ -82,7 +83,7 @@ export class ClientCollection {
     public checkOwnership(client: cpptools.Client, document: vscode.TextDocument): boolean {
         let owners: cpptools.Client[] = [];
         this.languageClients.forEach(languageClient => {
-            if (document.uri.fsPath.startsWith(languageClient.RootPath)) {
+            if (document.uri.fsPath.startsWith(languageClient.RootPath + path.sep)) {
                 owners.push(languageClient);
             }
         });