no-data-found-override.patch

https://trac.transmissionbt.com/ticket/4537#comment:4
---

diff --git a/libtransmission/torrent.c b/libtransmission/torrent.c
index c79edf5f9..1863215c7 100644
--- a/libtransmission/torrent.c
+++ b/libtransmission/torrent.c
@@ -915,13 +915,27 @@ static bool setLocalErrorIfFilesDisappeared(tr_torrent* tor)
     if (disappeared)
     {
         tr_deeplog_tor(tor, "%s", "[LAZY] uh oh, the files disappeared");
-        tr_torrentSetLocalError(tor, "%s", _("No data found! Ensure your drives are connected or use \"Set Location\". "
-            "To re-download, remove the torrent and re-add it."));
+        tr_torrentSetLocalError(tor, "%s", _("No data found! Use \"Set Location\" or remove and re-add the torrent. "
+            "You may also re-verify the torrent to re-download it."));
     }
 
     return disappeared;
 }
 
+static bool localErrFilesDisappearedUE( tr_torrent * tor )
+{
+    const bool disappeared = ( tr_cpHaveTotal( &tor->completion ) > 0 ) && !hasAnyLocalData( tor );
+
+    if( disappeared )
+    {
+        tr_deeplog_tor( tor, "%s", "[LAZY] uh oh WARNING, the files disappeared" );
+        tr_torrentSetLocalError( tor, "%s", _( "WARNING! possible user error! files MAYBE disappeared!!! to IGNORE: after verify use Start/Resume Now" ) );
+    }
+
+    return disappeared;
+}
+
+
 static void torrentInit(tr_torrent* tor, tr_ctor const* ctor)
 {
     tr_session* session = tr_ctorGetSession(ctor);
@@ -1859,8 +1873,8 @@ static void torrentStart(tr_torrent* tor, bool bypass_queue)
         break;
     }
 
-    /* don't allow the torrent to be started if the files disappeared */
-    if (setLocalErrorIfFilesDisappeared(tor))
+    /* IGNORE the error and start if Start/Resume Now issued */
+    if( !bypass_queue && localErrFilesDisappearedUE( tor ) )
     {
         return;
     }
@@ -1983,14 +1997,11 @@ static void verifyTorrent(void* vdata)
 
     tor->startAfterVerify = startAfter;
 
-    if (setLocalErrorIfFilesDisappeared(tor))
+    if( localErrFilesDisappearedUE( tor ) )
     {
         tor->startAfterVerify = false;
     }
-    else
-    {
-        tr_verifyAdd(tor, onVerifyDone, data);
-    }
+    tr_verifyAdd(tor, onVerifyDone, data);
 
 unlock:
     tr_sessionUnlock(tor->session);