test-drop: all obsmarkers are now dropped
Previously, hg drop may leave some obsmarkers behind, like with temporary
amend commit.
Following mercurial revision 71eb6a098315, strip now correctly remove the
associated obsmarkers and as drop is also calling strip, the bug is now
resolved.
test-drop.t
test-inhibit.t
test-simple4server.t
tests/test-simple4server-bundle2.t