`select_scheduler()` is called when a new consensus arrives with `scheduler_notify_networkstatus_changed()` but never takes the new consensus for which at that point it is not yet set as the global consensus. It needs to use `new_c`. This is not good because of that, we can't change anything with the consensus at runtime......... Thanks to Roger for finding this out here: https://oniongit.eu/dgoulet/tor/merge_requests/17#note_2153