# HG changeset patch
# User Sushil khanchi <sushilkhanchi97@gmail.com>
# Date 1541481215 -19800
# Node ID e796835fe6b3ea8bbc3094aa8337095accffae86
# Parent  a8ed26f01c8d7b81cb4f5886be52ddc3a1d82c90
evolvecmd: _possibledestination() skip visiting empty parent

I see that even in the case when "parent == -1" we are visiting
that also and find succsets for that and in last -1 is being
added in the set of possible destination. Why not skip that?

diff -r a8ed26f01c8d -r e796835fe6b3 hgext3rd/evolve/evolvecmd.py
--- a/hgext3rd/evolve/evolvecmd.py	Sat Nov 03 12:21:19 2018 +0530
+++ b/hgext3rd/evolve/evolvecmd.py	Tue Nov 06 10:43:35 2018 +0530
@@ -1015,6 +1015,8 @@
     tovisit = list(parents(rev))
     while tovisit:
         r = tovisit.pop()
+        if r == -1:
+            continue
         succsets = obsutil.successorssets(repo, tonode(r))
         if not succsets:
             tovisit.extend(parents(r))