Beta-testing for YunoHost 4.0 on Debian Buster (and migration shipped in Yunohost 3.8.5)

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After upgrade to 4.0 from 3.8.5 it failed to update mastodon app:

https://paste.yunohost.org/raw/qidadahomo

Edit: I also cannot restore it from backup: https://paste.yunohost.org/raw/cetehovuni