--- a/hgext3rd/evolve/obscache.py	Thu May 11 16:05:50 2017 +0200
+++ b/hgext3rd/evolve/obscache.py	Thu May 11 16:06:31 2017 +0200
@@ -242,8 +242,10 @@
     def uptodate(self, repo):
         if self._cachekey is None:
             self.load(repo)
-        valid, startrev, startidx = upgradeneeded(repo, self._cachekey)
-        return (valid and startrev is None and startidx is None)
+        status = _checkkey(repo, self._cachekey)
+        return (status is not None
+                and status[0] == self._cachekey[0] # tiprev
+                and status[1] == self._cachekey[3]) # obssize
 
     def update(self, repo):
         """Iteratively update the cache with new repository data"""