[brickset] Little fix to scrobble of bricksets

vrobbler/apps/bricksets/models.py

@@ -50,6 +50,12 @@ class BrickSet(LongPlayScrobblableMixin):
     def get_absolute_url(self):
         return reverse("bricksets:brickset_detail", kwargs={"slug": self.uuid})
 
+    def __str__(self) -> str:
+        name = str(self.title)
+        if not self.title:
+            name = str(self.number)
+        return name
+
     @property
     def logdata_cls(self):
         return BrickSetLogData