The main piece of data we care about is the campaignId, which is saved
in the sending queue's meta, so I think it makes more sense to base the
query on the sending queues as opposed to newsletters.
MAILPOET-5629
Fix a problem in the codebase where we create, schedule and update newsletters in the user time zone, but we set the ProcessedAt with another timezone
Also, `Carbon::createFromTimestamp($this->wp->currentTime('mysql'))` is not a valid date.
It would return date: '1970-01-01 00:35:29.000000'
MAILPOET-5795
It's not a critical error if we aren't able to save this lookup data,
and we wouldn't want it to interfere with the sending of a newsletter,
but we should log it as an error for debugging purposes.
MAILPOET-5625
This method is intended to store the actual names of things that might
change or be deleted in the future, so we can include accurate
information when showing what the snapshot of the filter was at the time
.
MAILPOET-5625
This method will be used in a subsequent commit to replace some of the
usages of the method SendingQueue::findTaskByNewsletterId() as part of
the refactor from Paris to Doctrine.
[MAILPOET-4138]
