# HG changeset patch
# User Pierre-Yves David <pierre-yves.david@ens-lyon.org>
# Date 1486029064 -3600
# Node ID 847f06179f6084e9fa88129cf3cc22af582560a5
# Parent  aaa75158532500b3c2b2a8cf1fa22fe8100e233d
unbundle: add a small comment to clarify the 'check_heads' call

Bundle2 has its own mechanisms to check for heads (and other) changes, so push
using bundle2 is relying on the "check:heads" bundle part of unbundle and the
'check_heads' call is not checking anything. We add a small comment to make
this clearer.

diff -r aaa751585325 -r 847f06179f60 mercurial/exchange.py
--- a/mercurial/exchange.py	Thu Feb 02 11:17:36 2017 -0800
+++ b/mercurial/exchange.py	Thu Feb 02 10:51:04 2017 +0100
@@ -1719,6 +1719,8 @@
     if url.startswith('remote:http:') or url.startswith('remote:https:'):
         captureoutput = True
     try:
+        # note: outside bundle1, 'heads' is expected to be empty and this
+        # 'check_heads' call wil be a no-op
         check_heads(repo, heads, 'uploading changes')
         # push can proceed
         if util.safehasattr(cg, 'params'):