'darcs setpref' does not coalesce changes in the pending patch. As a
counter-example, 'darcs mv' does.

Example:
% darcs mv a b ; darcs mv b c
% darcs setpref binariesfile bin-a
Changing value of binariesfile from 'old' to 'bin-a'
% darcs setpref binariesfile bin-b
Changing value of binariesfile from 'bin-a' to 'bin-b'
% darcs whatsnew
move ./a ./c
changepref binariesfile
old
bin-a
changepref binariesfile
bin-a
bin-b

The two moves were merged into one, but the changeprefs were not.

The desired output would be:
% darcs whatsnew
move ./a ./c
changepref binariesfile
old
bin-b

This would be a nice thing to fix.  The function is (actually quite
intuitively) called 'coalesce'...
-- 
David Roundy
http://www.darcs.net

Patch sent to list.  See also RT #349.

fixed in 1.0.6
Sat Dec 31 00:08:42 CET 2005  Eric Kow <eric.kow@gmail.com>
  * Coalesce setpref (issue70 and RT #349)