### Gitea Version 1.15.5 ### Git Version Docker image ### Operating System Not applicable ### How are you running Gitea? Docker image ### Database MySQL ### Can you reproduce the bug on the Gitea demo site? Yes ### Log Gist _No response_ ### Description Repeatedly hitting Sign In button results in ever increasing chain for `redirect_to` GET argument leading to eventual error 500. I guess this is done to preserve GET arguments for other views but for `/user/login` this does not make sense. Looking at my Gitea server logs looks like some web crawlers get stuck in these loops. ### Screenshots _No response_