Debugger: GHC 9.10.1 panic! (the 'impossible' happened) (same issue on 9.8.2)

Summary

When debugging the project via cabal repl the following panic message shows up.

Stopped in Main.cgiHandler, src/Main.hs:32:12-21
panic! (the 'impossible' happened)
  GHC version 9.10.1:
	fieldGREInfo
  gre_name: cgiHandler
  info: Vanilla
  Call stack:
      CallStack (from HasCallStack):
        callStackDoc, called at compiler/GHC/Utils/Panic.hs:190:37 in ghc-9.10.1-803c:GHC.Utils.Panic
        pprPanic, called at compiler/GHC/Types/Name/Reader.hs:1055:15 in ghc-9.10.1-803c:GHC.Types.Name.Reader
  CallStack (from HasCallStack):
    panic, called at compiler/GHC/Utils/Error.hs:507:29 in ghc-9.10.1-803c:GHC.Utils.Error

Steps to reproduce

git clone git@gitlab.haskell.org:mhitza1/poc-panic.git
cd poc-panic
cabal repl prototyper-server

Within the repl

:set -fdefer-type-errors
:set stop :list
:break Lib.CGIHandler.handleRequest
main
-- open http://localhost:8089 in the browser
:step
:step
:step
:step
:step
:step
:step
:step -- line: 23    pure $ Env cgi

Expected behavior

Environment

• GHC version used: 9.10.1 (and 9.8.2)

Optional:

• Operating System: Linux (Fedora 40)
• System Architecture: x86