[Pidgin] #17291: Fix crashes when some external APIs fail

[Pidgin]

#17291: Fix crashes when some external APIs fail
----------------------+------------------------
 Reporter:  Zhouyang  |       Owner:  EionRobb
     Type:  patch     |      Status:  new
Milestone:            |   Component:  libpurple
  Version:  2.12.0    |  Resolution:
 Keywords:  API bugs  |
----------------------+------------------------

--
Ticket URL: <https://developer.pidgin.im/ticket/17291>
Pidgin <https://pidgin.im>
Pidgin