CamelOperation: Try to avoid crashing on refcount errors.
CamelOperation: Try to avoid crashing on refcount errors.

Sanity check the StatusNode passed to the idle callback so that we emit
a runtime warning rather than crash if the CamelOperation has already
been finalized.

gcampax/evolution-data-server,matzipan/evolution-data-server,Distrotech/evolution-data-server,matzipan/evolution-data-server,matzipan/evolution-data-server,gcampax/evolution-data-server,matzipan/evolution-data-server,Distrotech/evolution-data-server,Distrotech/evolution-data-server,gcampax/evolution-data-server,tintou/evolution-data-server,matzipan/evolution-data-server,gcampax/evolution-data-server,Distrotech/evolution-data-server,Distrotech/evolution-data-server,tintou/evolution-data-server,tintou/evolution-data-server,tintou/evolution-data-server