Eugen Rochko fe5b66aa08 Handle duplicate ActivityPub activities (#4639)
* Handle duplicate ActivityPub activities

Only perform side-effects when record processed for the first time

* Fast-forward repeat follow requests
2017-08-20 16:53:47 +02:00
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2017-05-25 14:14:36 +02:00
2017-07-31 15:19:13 +02:00
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