# HG changeset patch
# User Boris Feld <boris.feld@octobus.net>
# Date 1548458522 18000
# Node ID e2e815e3c4ae9ed9dcecf846560d1d43f27afe2e
# Parent  48394923fbdc4fe9144bc054247a0d7c1adb613c
revlog: document cext oddities in terms of object/caches

This clarify why we just call clearcaches on a single object.

diff -r 48394923fbdc -r e2e815e3c4ae mercurial/revlog.py
--- a/mercurial/revlog.py	Fri Jan 25 14:52:31 2019 -0500
+++ b/mercurial/revlog.py	Fri Jan 25 18:22:02 2019 -0500
@@ -607,6 +607,9 @@
         self._pcache = {}
 
         try:
+            # If we are using the native C version, you are in a fun case
+            # where self.index, self.nodemap and self._nodecaches is the same
+            # object.
             self._nodecache.clearcaches()
         except AttributeError:
             self._nodecache = {nullid: nullrev}