We cannot assume that nobody else have killed the object we are trying to snipe.  If they did, fail the sniping.
We cannot assume that nobody else have killed the object we are
trying to snipe.  If they did, fail the sniping.

Fixes #1942

feld/Varnish-Cache,gquintard/Varnish-Cache,feld/Varnish-Cache,gquintard/Varnish-Cache,feld/Varnish-Cache,gquintard/Varnish-Cache,feld/Varnish-Cache,feld/Varnish-Cache,gquintard/Varnish-Cache