Conflicting definition in hs-boot file

Foo.hs:

module Foo where

import Bar

data Foo a

Foo.hs-boot:

module Foo where

data Foo a

Bar.hs:

module Bar where
import {-# SOURCE #-} Foo

With GHC 7.8.2 I'm getting the error

Foo.hs-boot:3:1:
    Type constructor ‘Foo’ has conflicting definitions in the module
    and its hs-boot file
    Main module: type role Foo phantom
                 data Foo a
    Boot file:   data Foo a

Trac metadata

Trac field	Value
Version	7.8.2
Type	Bug
TypeOfFailure	OtherFailure
Priority	normal
Resolution	Unresolved
Component	Compiler
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