poly undo testing - currently check is used to remove unneeded cset marks.  Thinking on how we can have undo do it and check just worry about integrity checks.
poly undo testing - currently check is used to remove
unneeded cset marks.  Thinking on how we can have undo
do it and check just worry about integrity checks.

bk: 4ffcc4b0n2uQDAYBtROXwttAv3Awhg
bitkeeper-scm/bitkeeper,bitkeeper-scm/bitkeeper,bitkeeper-scm/bitkeeper,bitkeeper-scm/bitkeeper,bitkeeper-scm/bitkeeper,bitkeeper-scm/bitkeeper,bitkeeper-scm/bitkeeper,bitkeeper-scm/bitkeeper,bitkeeper-scm/bitkeeper,bitkeeper-scm/bitkeeper,bitkeeper-scm/bitkeeper,bitkeeper-scm/bitkeeper