pushkey: do not exchange obsole markers if feature is disabled
This apply to both push and pull both when client or server.
$ echo "[extensions]" >> $HGRCPATH
$ echo "mq=" >> $HGRCPATH
$ hg init
$ echo qqq>qqq.txt
rollback dry run without rollback information
$ hg rollback
no rollback information available
[1]
add file
$ hg add
adding qqq.txt
commit first revision
$ hg ci -m 1
set bookmark
$ hg book test
$ echo www>>qqq.txt
commit second revision
$ hg ci -m 2
set bookmark
$ hg book test2
update to -2 (inactives the active bookmark)
$ hg update -r -2
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ echo eee>>qqq.txt
commit new head
$ hg ci -m 3
created new head
bookmarks updated?
$ hg book
test 1:25e1ee7a0081
test2 1:25e1ee7a0081
strip to revision 1
$ hg strip 1
saved backup bundle to $TESTTMP/.hg/strip-backup/*-backup.hg (glob)
list bookmarks
$ hg book
test 0:5c9ad3787638
test2 0:5c9ad3787638
immediate rollback and reentrancy issue
$ echo "mq=!" >> $HGRCPATH
$ hg init repo
$ cd repo
$ echo a > a
$ hg ci -Am adda
adding a
$ echo b > b
$ hg ci -Am addb
adding b
$ hg bookmarks markb
$ hg rollback
repository tip rolled back to revision 0 (undo commit)
working directory now based on revision 0
are you there?
$ hg bookmarks
no bookmarks set
can we commit? (issue2692)
$ echo c > c
$ hg ci -Am rockon
adding c
can you be added again?
$ hg bookmarks markb
$ hg bookmarks
* markb 1:fdb34407462c
rollback dry run with rollback information
$ hg rollback -n
repository tip rolled back to revision 0 (undo commit)
$ hg bookmarks
* markb 1:fdb34407462c
rollback dry run with rollback information and no commit undo
$ rm .hg/store/undo
$ hg rollback -n
no rollback information available
[1]
$ hg bookmarks
* markb 1:fdb34407462c
$ cd ..