Exception in :cmd command can terminate GHCi

watashi % ghci -ignore-dot-ghci
GHCi, version 7.10.1: http://www.haskell.org/ghc/  :? for help
Prelude> :cmd return $ head []
ghc: panic! (the 'impossible' happened)
  (GHC version 7.10.1 for i386-unknown-linux):
	Prelude.head: empty list

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

Trac metadata

Trac field	Value
Version	7.10.1
Type	Bug
TypeOfFailure	OtherFailure
Priority	normal
Resolution	Unresolved
Component	GHCi
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Related
Blocking
CC	hvr
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Architecture