Bug reproduction for T57140

gistfile1.py

#
# Case 0
# ==============================================
# user-config.py:
#
# family = 'local'
# mylang = 'en'
# usernames['local']['en'] = u'VcamX'
# sysopnames['local']['en'] = u'VcamX'
# password_file = 'password'
#
# password:
#
# (u'VcamX', '123')
#
# Result:
#
# (diff | hist) . . Nb Test 2‎; 01:40 . . (+6)‎ . . ‎VcamX (Talk | contribs | block)‎ (Pywikibot v.2)
# (Deletion log); 01:40 . . VcamX (Talk | contribs | block) deleted page Test 0 ‎(Just delete it)
# (diff | hist) . . Nb Test 1‎; 01:40 . . (+6)‎ . . ‎VcamX (Talk | contribs | block)‎ (Pywikibot v.2)
#
#
# Case 1
# ==============================================
# user-config.py:
#
# family = 'local'
# mylang = 'en'
# usernames['local']['en'] = u'VcamXBot'
# sysopnames['local']['en'] = u'VcamX'
# password_file = 'password'
#
# password:
#
# (u'VcamXBot', '123')
# (u'VcamX', '123')
#
# Result:
#
# (diff | hist) . . Nb Test 2‎; 01:51 . . (+6)‎ . . ‎VcamXBot (Talk | contribs | block)‎ (Pywikibot v.2)
# (Deletion log); 01:51 . . VcamX (Talk | contribs | block) deleted page Test 0 ‎(Just delete it)
# (diff | hist) . . Nb Test 1‎; 01:50 . . (+6)‎ . . ‎VcamXBot (Talk | contribs | block)‎ (Pywikibot v.2)
#


site = pywikibot.Site()

# The action below should be done with non-sysop account (thus bot flag added)
create_page = pywikibot.Page(pywikibot.Link('Test 0'), site)
create_page.text = 'Test 0'
create_page.save()

# The action below should be done with non-sysop account (thus bot flag added)
create_page = pywikibot.Page(pywikibot.Link('Test 1'), site)
create_page.text = 'Test 1'
create_page.save()

# The action below should be done with sysop account (thus no bot flag)
delete_page = pywikibot.Page(pywikibot.Link('Test 0'), site)
delete_page.delete('Just delete it')

# The actionn below should be done with non-sysop account (thus bot flag added)
create_page = pywikibot.Page(pywikibot.Link('Test 2'), site)
create_page.text = 'Test 2'
create_page.save()

The action on line 65 should be non-sysop account, with bot flag.
i.e. non-sysop account should continue to behave the same as it did previously, before line 60 caused a sysop action.

@jayvdb I'm sorry, it's a typo actually. Everything seemed to work well according to this script.