# HG changeset patch
# User Mateusz Kwapich <mitrandir@fb.com>
# Date 2016-11-17 18:59:15
# Node ID 46d2c8b23c336a3108acb45c2f5817b1c0e922b6
# Parent  7fbc8a742b4d9f2d4ca14dc02fef618859d8a300

localrepo: make it possible to reuse manifest when commiting context

This makes the commit function understand the context that's reusing manifest.

diff --git a/mercurial/localrepo.py b/mercurial/localrepo.py
--- a/mercurial/localrepo.py
+++ b/mercurial/localrepo.py
@@ -1696,7 +1696,11 @@ class localrepository(object):
             tr = self.transaction("commit")
             trp = weakref.proxy(tr)
 
-            if ctx.files():
+            if ctx.manifestnode():
+                # reuse an existing manifest revision
+                mn = ctx.manifestnode()
+                files = ctx.files()
+            elif ctx.files():
                 m1ctx = p1.manifestctx()
                 m2ctx = p2.manifestctx()
                 mctx = m1ctx.copy()