# HG changeset patch
# User Martin von Zweigbergk <martinvonz@google.com>
# Date 2019-01-15 17:20:47
# Node ID e3e1b06393756c277f00bba5e2cdd3ddd0832baf
# Parent  d2d716cc07002dcfb389cee03823cc56d613cd5c

copies: use node.wdirrev instead of inventing another constant for it

Differential Revision: https://phab.mercurial-scm.org/D5592

diff --git a/mercurial/copies.py b/mercurial/copies.py
--- a/mercurial/copies.py
+++ b/mercurial/copies.py
@@ -46,22 +46,21 @@ def _findlimit(repo, a, b):
     #   - quit when interesting revs is zero
 
     cl = repo.changelog
-    working = len(cl) # pseudo rev for the working directory
     if a is None:
-        a = working
+        a = node.wdirrev
     if b is None:
-        b = working
+        b = node.wdirrev
 
     side = {a: -1, b: 1}
     visit = [-a, -b]
     heapq.heapify(visit)
     interesting = len(visit)
     hascommonancestor = False
-    limit = working
+    limit = node.wdirrev
 
     while interesting:
         r = -heapq.heappop(visit)
-        if r == working:
+        if r == node.wdirrev:
             parents = [cl.rev(p) for p in repo.dirstate.parents()]
         else:
             parents = cl.parentrevs(r)