Loading new activities just adds the new content to the top of the stack, but should be sorted by the time field on the activity so new local content is not pushed down out of place.
Because it seems to pull the self update from the client, making it pull new data from the server like other posts should work, as it will order itself.
Reference
Loading new activities just adds the new content to the top of the stack, but should be sorted by the time field on the activity so new local content is not pushed down out of place.