Fixes logging output for intercepted requests. Closes #820 (#821)

Author: waldekmastykarz

dev-proxy-plugins/RandomErrors/GenericRandomErrorPlugin.cs

@@ -175,6 +175,7 @@ error.Headers is not null &&
         {
             session.GenericResponse(body, statusCode, headers.Select(h => new HttpHeader(h.Name, h.Value)));
         }
+        e.ResponseState.HasBeenSet = true;
         Logger.LogRequest([$"{error.StatusCode} {statusCode.ToString()}"], MessageType.Chaos, new LoggingContext(e.Session));
     }
 
@@ -201,7 +202,6 @@ private void OnInit(object? sender, InitArgs e)
 
     private Task OnRequest(object? sender, ProxyRequestArgs e)
     {
-        var state = e.ResponseState;
         if (!e.ResponseState.HasBeenSet
             && UrlsToWatch is not null
             && e.ShouldExecute(UrlsToWatch))
@@ -213,7 +213,6 @@ private Task OnRequest(object? sender, ProxyRequestArgs e)
                 return Task.CompletedTask;
             }
             FailResponse(e);
-            state.HasBeenSet = true;
         }
 
         return Task.CompletedTask;