# HG changeset patch
# User Pierre-Yves David <pierre-yves.david@octobus.net>
# Date 2017-06-25 12:41:12
# Node ID e70cbae4c4e60108aa7dc31fc9230ba820861f13
# Parent  1dc2ffe0123b53271a4ce3858f1c15add011a2cf

config: use '_config' within 'configbytes'

This will prevent bugs from using None as the sentinel value (eg:
'ui.interactive')

diff --git a/mercurial/ui.py b/mercurial/ui.py
--- a/mercurial/ui.py
+++ b/mercurial/ui.py
@@ -634,8 +634,8 @@ class ui(object):
         ConfigError: foo.invalid is not a byte quantity ('somevalue')
         """
 
-        value = self.config(section, name, default, untrusted)
-        if value is None:
+        value = self._config(section, name, default, untrusted)
+        if value is _unset:
             if default is _unset:
                 default = 0
             value = default