evolve: strip the extra obsmarkers if any on `hg evolve --abort`
Previous patches started storing some obsmarkers which needs to stripped during
`evolve --abort` which can't be stripped by stripping the new evolved changesets
because they point to a node which existed before the evolution was performed.
This patch adds logic to strip those obsmarkers by finding their indices in the
obsstore and then stripping them.
-------------------------
Evolve Commands Reference
-------------------------
.. highlight:: none
amend
-----
.. hghelp:: amend
evolve
------
.. hghelp:: evolve
fold
----
.. hghelp:: fold
metaedit
--------
.. hghelp:: metaedit
next
----
.. hghelp:: next
obslog
------
.. hghelp:: obslog
pdiff
-----
.. hghelp:: pdiff
previous
--------
.. hghelp:: previous
prune
-----
.. hghelp:: prune
pstatus
-------
.. hghelp:: pstatus
split
-----
.. hghelp:: split
touch
-----
.. hghelp:: touch
uncommit
--------
.. hghelp:: uncommit