revlog.strip should clear the chunkcache
The chunkcache isn't valid after a strip, it needs to be cleared out.
--- a/mercurial/revlog.py
+++ b/mercurial/revlog.py
@@ -828,6 +828,7 @@ class revlog(object):
# then reset internal state in memory to forget those revisions
self.cache = None
+ self.chunkcache = None
for p in self.index[rev:]:
del self.nodemap[p[6]]
del self.index[rev:]