[Fixes #1183] Race condition in RouteBase.EnsureLoggers

Author: javiercn

src/Http/Routing/src/RouteBase.cs

@@ -262,8 +262,8 @@ private void EnsureLoggers(HttpContext context)
             if (_logger == null)
             {
                 var factory = context.RequestServices.GetRequiredService<ILoggerFactory>();
-                _logger = factory.CreateLogger(typeof(RouteBase).FullName);
                 _constraintLogger = factory.CreateLogger(typeof(RouteConstraintMatcher).FullName);
+                _logger = factory.CreateLogger(typeof(RouteBase).FullName);
             }
         }