フォロー
https://github.com/mastodon/mastodon/commit/f40706037b4c3c902fbe2b400bda21c786c1400d
https://github.com/mastodon/mastodon/commit/2b7d1d99411712856953eada9c7ec645be4983b7#diff-959bc9abc46a55332bb64d5155a79323afa75a50ec1a2137ddd22d926f62c6c5
https://github.com/fedibird/mastodon/commit/92a9a23eb6b150e28933e550592e2479d4771877#diff-959bc9abc46a55332bb64d5155a79323afa75a50ec1a2137ddd22d926f62c6c5
https://github.com/mastodon/mastodon/commit/3bcbbb74636db32fc3929f5bf38e9fa9ba213537
とりあえずメモっとくか
