Background Sql converting to utf8mb4 did not work for piwik_continentcountry in Matomo-4.1

as shown in screenshot after converting Matomo database tables to utf8mb4 using a background task table piwik_contnentcountry is still utf8_general_ci and not expected utf8mb4_general_ci:

Is it normal, manual converting necessary?

Thanks + best regards!


I don’t know any continentcountry table and can’t find any reference to it in the code. It is also still a MyISAM table which I think Matomo also doesn’t support since many years ago.
So I guess this table has been created by some plugin a long time ago and is since unused (and therefore also wasn’t affected by the utf8 migration.