I don't know when I will support Matrix again, but if something is so
sensitive that you absolutely need to verify my keys, use either
XMPP/OMEMO or Signal.
Apparently I had renamed it at some point and Jekyll was updated at
GitHub and Travis while I was running older version and the newer
version noticed those broken links and wanted them to be fixed.
It became horrible mess including four primary accounts plus two not so
important accounts + two Google accounts, so I am going to pretend XMPP
doesn't exist and manage keys with everyone invidually as needed as
currently I have only one actively XMPP using contact.
The rest moved to Matrix.
This time I didn't log out or anything, previous time I changed key I
hadn't noticed that the fingerprint included slash and continued for
longer than I had pasted.
I wished to fix disappearing notifications by using the F-Droid version,
but it worked even more badly disappearing when screen turned off
(possibly related to Greenify's aggressive doze even if it was
whitelisted) and then I returned to Play Store version and thought I
have to boot laptop for fixing this.
Backup plan: add Pushover email address to Riot.
Phone#2 is having factory reset or more accurately many SailfishOS
updates since the recovery image which could be even older if it wasn't
in repair once.
I am at Kotka for Christmas and possibly new year while Terasar is at
home so I cannot check what it says thanks to Matrix only showing
fingerprint on that device.