OAuth: invalidate token if current scope was concerned

Change-Id: Iec1bb9a287d97dff8cc4342fe5ebf7d2238f10b4

src/jamidht/server_account_manager.cpp

@@ -246,7 +246,7 @@ void
 ServerAccountManager::authError(TokenScope scope) {
     {
         std::lock_guard<std::mutex> lock(tokenLock_);
-        if (scope >= tokenScope_) {
+        if (scope <= tokenScope_) {
             token_ = {};
             tokenScope_ = TokenScope::None;
         }