% add file
adding qqq.txt
% commit first revision
% set bookmark
% commit second revision
% set bookmark
% update to -2
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
% commit new head
created new head
% bookmarks updated?
   test                      1:16b24da7e457
   test2                     1:16b24da7e457
% strip to revision 1
saved backup bundle to 
% list bookmarks
 * test                      1:9f1b7e78eff8
 * test2                     1:9f1b7e78eff8
% test immediate rollback and reentrancy issue
adding a
adding b
rolling back to revision 0 (undo commit)
no bookmarks set
 * markb                     0:07f494440405