ilteriseroglu-ty commented on code in PR #8564:
URL: https://github.com/apache/apisix/pull/8564#discussion_r1057091242


##########
apisix/plugins/proxy-rewrite.lua:
##########
@@ -297,6 +297,8 @@ do
         else
             ctx.var.upstream_uri = upstream_uri
         end
+    else
+        ctx.var.upstream_uri = upstream_uri

Review Comment:
   To be quite honest, I don't know. _But_, a route to a GitLab API backend 
running at couple thousand requests/s has almost 50 percent error rate without 
this change because the request uri gets normalized _somewhere_ in the 
execution chain, even though it shouldn't be because 
`use_real_request_uri_unsafe` is set.
   
   For instance 
`/api/v4/projects/12345/repository/files/technology%2Ftest.yaml?ref=stage` will 
be normalized down to 
`/api/v4/projects/12345/repository/files/technology/test.yaml?ref=stage` 
without this change, which shouldn't happen as this route has 
`use_real_request_uri_unsafe` enabled (which we did confirm).



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