Issue when attempting merge

Issue #5244 duplicate
Anonymous created an issue

!python

** Mercurial version (4.7.1).  TortoiseHg version (4.7.1)
** Command: 
** CWD: C:\Windows\system32
** Encoding: cp1252
** Extensions loaded: histedit, mercurial_keyring, strip, mq, purge, rebase, tortoisehg.util.configitems
** Python version: 2.7.13 (v2.7.13:a06454b1afa1, Dec 17 2016, 20:53:40) [MSC v.1500 64 bit (AMD64)]
** Windows version: sys.getwindowsversion(major=6, minor=2, build=9200, platform=2, service_pack='')
** Processor architecture: x64
** Qt-5.9.2 PyQt-5.9.1 QScintilla-2.10.2.dev1711012104
Traceback (most recent call last):
  File "tortoisehg\hgqt\merge.pyo", line 113, in pageChanged
  File "tortoisehg\hgqt\merge.pyo", line 368, in currentPage
TypeError: %d format: a number is required, not NoneType