1. Summarise the issue (what were doing, what went wrong?)

I wanted to see the history of the GSoC student guide page and got 
http://darcs.net/_history/GSoC/Guide

Server error: UnknownError: darcs changes returned error status.
darcs: Couldn't find first patch affecting 
./GoogleSummerOfCode/Guide.page in pis_and_fs

2. What behaviour were you expecting instead?

That darcs changes actually worked here

3. What darcs version are you using? (Try: darcs --exact-version)

Not sure, this is gitit-0.10.0.1, but I've lost the build info which 
would tell us what version of the darcs lib it is

4. What operating system are you running?

Debian 5.0.3

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It'd be good if we could divorce this issue from Gitit

Oh, the rename from GoogleSummerOfCode to GSoC (hooray for mornfally 
concision) is worth noting.