# HG changeset patch
# User Pierre-Yves David <pierre-yves.david@octobus.net>
# Date 2021-01-15 22:49:51
# Node ID 154ded9104f1dc773fe0b6b7f7aa4423bbe2ba00
# Parent  f213b250fed0c88c7be9f32538477dd64eab8184

copies: clarify which case some conditional are handling

This make the function a bit clearer. The middle conditional get no label
because we about about to remove it. See next changeset for details.

Differential Revision: https://phab.mercurial-scm.org/D9794

diff --git a/mercurial/copies.py b/mercurial/copies.py
--- a/mercurial/copies.py
+++ b/mercurial/copies.py
@@ -60,13 +60,13 @@ def _filter(src, dst, t):
 
     for k, v in list(t.items()):
         # remove copies from files that didn't exist
-        if v not in src:
+        if v not in src:  # case 5
             del t[k]
         # remove criss-crossed copies
         elif k in src and v in dst:
             del t[k]
         # remove copies to files that were then removed
-        elif k not in dst:
+        elif k not in dst:  # case 1
             del t[k]