Fix a race in persistent startup which seldomly triggered p00005

bin/varnishd/storage/storage_persistent_silo.c

@@ -166,8 +166,8 @@ smp_load_seg(struct worker *wrk, const struct smp_sc *sc,
 		oc->ban = BAN_RefBan(oc, so->ban, sc->tailban);
 		HSH_Insert(wrk, so->hash, oc);
 		oc->exp = so->exp;
-		EXP_Inject(wrk, oc, sg->lru);
 		sg->nobj++;
+		EXP_Inject(wrk, oc, sg->lru);
 	}
 	Pool_Sumstat(wrk);
 	sg->flags |= SMP_SEG_LOADED;