Most factories were using dynamic times and dates since commit 0cf799a.
However:
* At the time, commits AyuntamientoMadrid/consul@71f5351 and
AyuntamientoMadrid/consul@a476a30 (which introduced static times/dates
in factories) hadn't been backported.
* The changes in commit 0cf799a overlooked the factory
`proposal_notification`.