solve_disambiguation: Ignore ValueError
solve_disambiguation: Ignore ValueError

https://phabricator.wikimedia.org/P13608 just happened
to me. It disrupts normal experience, as I have to re-run the script
manually, skip again what I skipped, etc.

Bug: T111513
Change-Id: Ia2686e3142f3fe43516b6f1ee7a4693229aec601

wikimedia/pywikibot-core,wikimedia/pywikibot-core