From 8d9f62cdb51c85bc5caecf0cc96a2b039c38c107 Mon Sep 17 00:00:00 2001
From: wisp3rwind <17089248+wisp3rwind@users.noreply.github.com>
Date: Sun, 25 Jun 2023 11:09:37 +0200
Subject: [PATCH] db: don't build an intermediate list

---
 beets/dbcore/db.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/beets/dbcore/db.py b/beets/dbcore/db.py
index accb62327..81c0a6cd3 100755
--- a/beets/dbcore/db.py
+++ b/beets/dbcore/db.py
@@ -204,7 +204,7 @@ class LazyConvertDict:
     def __contains__(self, key) -> bool:
         """Determine whether `key` is an attribute on this object.
         """
-        return key in self.keys()
+        return key in self._converted.keys() or key in  self.data.keys()
 
     def __iter__(self) -> Iterable[str]:
         """Iterate over the available field names (excluding computed