Добавил ручную перепривязку

internal/worker/worker_test.go

@@ -60,6 +60,16 @@ func (f *fakeStore) ExistsByInfohash(_ context.Context, infohash string) (bool,
 	return false, nil
 }
 
+func (f *fakeStore) FindActiveByInfohash(_ context.Context, infohash string) (*store.Download, error) {
+	for _, d := range f.downloads {
+		if d.Infohash.Valid && d.Infohash.String == infohash && !d.State.IsTerminal() {
+			cp := *d
+			return &cp, nil
+		}
+	}
+	return nil, nil
+}
+
 func (f *fakeStore) CreateDownload(_ context.Context, d *store.Download) (int64, error) {
 	id := int64(len(f.downloads) + 1)
 	cp := *d