Reschedule when a recording is undeleted.

Note: an unwitting user could unintentionally bypass this change by
changing the recording group directly from "Deleted" to something
else.  Possibly fix this in the future by moving all releated fixups
into RecordingInfo::ApplyRecordRecGroupChange() instead of having
every caller do them.

Refs #11224

mythtv/programs/mythbackend/mainserver.cpp

@@ -2682,6 +2682,8 @@ void MainServer::DoHandleUndeleteRecording(
         recinfo.ApplyRecordRecGroupChange("Default");
         recinfo.UpdateLastDelete(false);
         recinfo.SaveAutoExpire(kDisableAutoExpire);
+        if (m_sched)
+            m_sched->RescheduleCheck(recinfo, "DoHandleUndelete");
         ret = 0;
 #if 0
     }