b2b_entities: fix restoring of DB persisted server entities

Server entities restored from DB would not use the original To tag due to
regenerating the timestamp part of the entity key.

(cherry picked from commit dd237c0)

modules/b2b_entities/dlg.c

@@ -236,19 +236,18 @@ str* b2b_htable_insert(b2b_table table, b2b_dlg_t* dlg, int hash_index, int src,
 		return NULL;
 	}
 
-	if(src == B2B_SERVER)
+	if(src == B2B_SERVER && !reload)
 	{
 		dlg->tag[CALLEE_LEG].s = (char*)shm_malloc(b2b_key->len);
 		if(dlg->tag[CALLEE_LEG].s == NULL)
 		{
 			LM_ERR("No more shared memory\n");
-			if(!reload)
-				lock_release(&table[hash_index].lock);
+			lock_release(&table[hash_index].lock);
 			return 0;
 		}
 		memcpy(dlg->tag[CALLEE_LEG].s, b2b_key->s, b2b_key->len);
 		dlg->tag[CALLEE_LEG].len = b2b_key->len;
-		if(!reload && b2be_db_mode == WRITE_THROUGH)
+		if(b2be_db_mode == WRITE_THROUGH)
 			b2be_db_insert(dlg, src);
 	}