dvr autorec: don't delete spawned recordings on shutdown

This stops the odd behaviour of alerting the user to new recordings that are
added on startup, that were previously in existance on shutdown.

src/dvr/dvr_autorec.c

@@ -43,13 +43,14 @@ struct dvr_autorec_entry_queue autorec_entries;
  * Unlink - and remove any unstarted
  */
 static void
-dvr_autorec_purge_spawns(dvr_autorec_entry_t *dae)
+dvr_autorec_purge_spawns(dvr_autorec_entry_t *dae, int del)
 {
   dvr_entry_t *de;
 
   while((de = LIST_FIRST(&dae->dae_spawns)) != NULL) {
     LIST_REMOVE(de, de_autorec_link);
     de->de_autorec = NULL;
+    if (!del) continue;
     if (de->de_sched_state == DVR_SCHEDULED)
       dvr_entry_cancel(de);
     else
@@ -273,7 +274,7 @@ dvr_autorec_add_series_link(const char *dvr_config_name,
 static void
 autorec_entry_destroy(dvr_autorec_entry_t *dae, int delconf)
 {
-  dvr_autorec_purge_spawns(dae);
+  dvr_autorec_purge_spawns(dae, delconf);
 
   if (delconf)
     hts_settings_remove("dvr/autorec/%s", idnode_uuid_as_str(&dae->dae_id));
@@ -1044,7 +1045,7 @@ dvr_autorec_changed(dvr_autorec_entry_t *dae, int purge)
   epg_broadcast_t *e;
 
   if (purge)
-    dvr_autorec_purge_spawns(dae);
+    dvr_autorec_purge_spawns(dae, 1);
 
   CHANNEL_FOREACH(ch) {
     RB_FOREACH(e, &ch->ch_epg_schedule, sched_link) {