# HG changeset patch
# User Pierre-Yves David <pierre-yves.david@octobus.net>
# Date 1515123469 -3600
# Node ID 9df35258e0c5aecabcb2a6a49323248ed6499503
# Parent  1905aac253f0f25418076e0fb5967106e459bb87
caches: protect against missing connection

If the connection cannot be established, we should not try to use it.

diff -r 1905aac253f0 -r 9df35258e0c5 hgext3rd/evolve/stablerangecache.py
--- a/hgext3rd/evolve/stablerangecache.py	Fri Jan 05 09:51:07 2018 +0100
+++ b/hgext3rd/evolve/stablerangecache.py	Fri Jan 05 04:37:49 2018 +0100
@@ -141,7 +141,7 @@
             new.add((r, depth(r) - 1))
             new.add((r, 0))
         con = self._con
-        while new:
+        while new and con is not None:
             # many execute is not efficient
             next = new.pop()
             known.add(next)