[fix] properly replace proxies in trace_with_replaced_proxy_metadata

[ali-alshaar7]

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[t-vi]

Great find, would we want to add a test of sorts?

[t-vi]

(The other thing could be to move it to the Processor)

[riccardofelluga]

What type is proxy_replacement_metadata?

[ali-alshaar7]

What type is proxy_replacement_metadata?

{str: Proxy} @riccardofelluga