The annotate command does not work consistently with paths with spaces:

% mkdir testrepo
% cd testrepo ; darcs init
% mkdir with\ spaces
% echo content > "with spaces"/file
% darcs record -al
% darcs changes with\ spaces/file
Changes to with spaces/file:

Mon Dec 19 23:44:11 CST 2005  Author
  * First patch
% darcs annotate with\ spaces/file

darcs failed:  There is no file or directory named 'with spaces/file'
% darcs annotate with\\32\\spaces/file
# File with\32\spaces/file created by [First patch
# Author**20051219131411]  as ./with\32\spaces/file

% cd "with spaces" ; darcs annotate file

darcs failed:  There is no file or directory named 'with spaces/file'

Likely fixed by Edwin Thomson's patch, now in the stable branch.

Sorry about the noise.  I meant to send to patch65, but somehow I typed:
$ darcs send --subject "[Patch65]"

and it ended up here by mistake.  I have deleted the extra bits from this ticket
and set things back to resolved.