, , , , (: "_", /, bad_leaf, , "good_revision" "), , / :
() good_revision, bad_leaf ; , , , good_revision, , , . , , "" , , .
fossil update good_revision
fossil commit
fossil merge -f
, , ,
fossil commit
, "", good_revision bad_leaf bad_leaf, , , () , bad_leaf.
A diff ( gnu, diff) good_revision . , , / .
: , , , : cvs/svn/ git/hg/perforce/clearcase.
: , , .