I got this from a 'make slowtest' (darcs 1.0.5rc1):

Checking the unravelling of a merge of a sequence... 69
Fail: bug in darcs!
in function reconcile_unwindings
Original patch:
merger 0.0 (
merger 0.0 (
{
replace ./nRhQgY6rSYmYbY85JJMGwxEP [A-Za-z] new old
addfile ./hello
}
hunk ./8YFgGTF 8
-this silly hello
+a world token
)
merger 0.0 (
merger 0.0 (
move ./hello ./test
move ./hello ./world
)
hunk ./world 15
-}
-}
+TrUnkLCFMWWUT1-LwL
+{
)
)
Please report this to bugs@darcs.net
If possible include the output of 'darcs --exact-version'.
make: *** [test_unit] Fel 1

On Fri, Nov 25, 2005 at 08:22:56PM +0000, Tommy Pettersson wrote:
> I got this from a 'make slowtest' (darcs 1.0.5rc1):
> 
> Checking the unravelling of a merge of a sequence... 69
> Fail: bug in darcs!
> in function reconcile_unwindings

This is a known issue, which is unlikely to be fixed until the conflictor
work goes in.  I believe that the merger code may be impossible to get
right.  :(
-- 
David Roundy
http://www.darcs.net

This bug is a duplicate one that is resolved-in-unstable.