[bugfix] Fix KeyError in api.update_page for coordinates
[bugfix] Fix KeyError in api.update_page for coordinates

Bug: T189398
Change-Id: I650d1cbb5e01ad2db5afa220a576c394d6dd5aa9

wikimedia/pywikibot-core,wikimedia/pywikibot-core,PersianWikipedia/pywikibot-core