Don't pollute move queue by torrents w/o metadata

There's really nothing to move if the torrent still doesn't have metadata.
Additionally, such torrents in the queue can lead to unexpected behavior
when reloading the torrent after metadata is received.

PR #17823.

src/base/bittorrent/torrentimpl.cpp

@@ -504,6 +504,9 @@ void TorrentImpl::setAutoTMMEnabled(bool enabled)
 
 Path TorrentImpl::actualStorageLocation() const
 {
+    if (!hasMetadata())
+        return {};
+
     return Path(m_nativeStatus.save_path);
 }
 
@@ -1690,6 +1693,12 @@ void TorrentImpl::resume(const TorrentOperatingMode mode)
 
 void TorrentImpl::moveStorage(const Path &newPath, const MoveStorageMode mode)
 {
+    if (!hasMetadata())
+    {
+        m_session->handleTorrentSavePathChanged(this);
+        return;
+    }
+
     if (m_session->addMoveTorrentStorageJob(this, newPath, mode))
     {
         m_storageIsMoving = true;