obsutil: fix the issue5686...
obsutil: fix the issue5686
While traversing the obsolescence graph to find the successors sets
of csets:
In its 4th case (read comments of obsutil.successorssets to see
all 4 cases) where we know successors sets of all direct successors
of CURRENT, we were just missing a condition to filter out the case
when a cset is pruned.
And without this condition (that this patch added) it was making a whole
successor set to [] just because of one pruned marker.
For e.g:if following is the successors set of a cset A:
A -> [a, b, c]
if we prune c, we expect A's successors set to be [a, b] but
you would get:
A -> []
So this patch make sure that we calculate the right successorsset of csets
considering the pruned cset (in split case).
Differential Revision:
https://phab.mercurial-scm.org/D5474