# HG changeset patch
# User Martin von Zweigbergk <martinvonz@google.com>
# Date 1522685881 25200
# Node ID de4849b67fe04ad454ee0e0a14437db84d0b284e
# Parent  32857300846c6c42570565138b5371e46634f9da
context: drop support for changeid='' (API)

Since the previous commit, there seem to be no users who pass '' to
repo.__getitem__, so let's drop support for it.

It may seem like a small cost to keep support for it, but I've spent
time being confused by it twice already.

Differential Revision: https://phab.mercurial-scm.org/D3021

diff -r 32857300846c -r de4849b67fe0 mercurial/context.py
--- a/mercurial/context.py	Mon Apr 02 08:43:08 2018 -0700
+++ b/mercurial/context.py	Mon Apr 02 09:18:01 2018 -0700
@@ -411,9 +411,6 @@
         """changeid is a revision number, node, or tag"""
         super(changectx, self).__init__(repo)
 
-        if changeid == '':
-            changeid = '.'
-
         try:
             if isinstance(changeid, int):
                 self._node = repo.changelog.node(changeid)