base-call-content: deinit the content instead of just asserting
base-call-content: deinit the content instead of just asserting

If for some reason the programmer hasn't deinited the content, just do
it for her.

Distrotech/telepathy-glib,Distrotech/telepathy-glib,Distrotech/telepathy-glib,Distrotech/telepathy-glib,Distrotech/telepathy-glib