GHCi panic when consing onto self

Summary

GHCi seems to dislike self-reference and list cons.

Steps to reproduce

I initially had this happen when trying to write xs = 1 : fmap (+1) xs.

λ ~/Projects/production-haskell/ master* ghci
GHCi, version 9.2.0.20210422: https://www.haskell.org/ghc/  :? for help
Loaded GHCi configuration from /home/matt/.dotfiles/haskell/ghci.symlink
λ> xs = 1 : fmap (+1) xs
ghc: panic! (the 'impossible' happened)
  (GHC version 9.2.0.20210422:
        nameModule
  internal xs2_sCN
  Call stack:
      CallStack (from HasCallStack):
        callStackDoc, called at compiler/GHC/Utils/Panic.hs:181:37 in ghc:GHC.Utils.Panic
        pprPanic, called at compiler/GHC/Types/Name.hs:323:3 in ghc:GHC.Types.Name

Please report this as a GHC bug:  https://www.haskell.org/ghc/reportabug

I managed to reduce this to

l = () : l

Using let doesn't help.

Using fix does -

l = fix $ \self -> () : self

Using mappend or ++ doesn't cause the issue. Using cons = (:) and then writing a = cons 1 a also works!

Expected behavior

Compile and work

Environment

• GHC version used: 9.2.0.20210422 from ghcup

Optional:

• Operating System:
• System Architecture: