Cherrypick fix.

Author: Mysticial

ClientSource/Connection/BotBase.cpp

@@ -29,10 +29,16 @@ BotBaseContext::BotBaseContext(CancellableScope& parent, BotBaseContext& context
 }
 BotBaseContext::~BotBaseContext(){
     m_lifetime_sanitizer.check_usage();
+    detach();
     try{
         m_botbase.wait_for_all_requests(this);
-    }catch (...){}
-    detach();
+    }catch (...){
+//        cout << "canceled with exception: " << this << endl;
+        CancellableScope* parent = scope();
+        if (parent){
+            parent->cancel(std::current_exception());
+        }
+    }
 }
 
 void BotBaseContext::wait_for_all_requests() const{