[IRCServices] BUG: Services crash under heavy akill removal load.

[derfy]

Hello.  

With the recent fizzer attack, we took to akilling the lot of
them.(the bots)  Services did not complain about this, until it tried
to remove the akills.  What followed was:

<OperServ> Akill on <valid_host> has expired.
etc...until
<OperServ> Akill on * has expired.(repeated about 10-20 times)
then services segfaulted.  This is ircservices-5.0.6.  I do not have
access to any log files it produced, however if needed(and I bet they
are), I can email them.

Any help, or a 'this has been fixed in a later release'?