ghci crashes with .o mismatches

Basic recipe is:

1. have multi-file program, compile with ghc --make (this creates some .o files in course of compilation)

2. edit some files and then run ghci and attempt to load main file with :l file.hs

3. ghci tries to load some of the compiled .o files, and crashes.

Workaround is to delete the .o's before running ghci.

Loading package binary-0.4.2 ... linking ... done.
<interactive>: internal error: loadObj: can't map `Records.o'
    (GHC version 6.8.2 for i386_unknown_linux)
    Please report this as a GHC bug:  http://www.haskell.org/ghc/reportabug
Aborted (core dumped)