raidboss: fix wipes preventing real countdowns
raidboss: fix wipes preventing real countdowns

When there's a wipe log line, it should only transition to the wipe
state when in an active countdown.  Otherwise, it should stay in the
none state (as this is a valid wipe outside of countdowns) so that the
next countdown still works.

Fixes #1761.  Follow-up to #1731.

quisquous/cactbot,quisquous/cactbot,quisquous/cactbot,quisquous/cactbot,quisquous/cactbot,quisquous/cactbot