From 1c64b8be32a6ba4db5cd3da33ec5f7aad5e67784 Mon Sep 17 00:00:00 2001
From: Maxr1998 <max.rumpf1998@gmail.com>
Date: Sat, 29 Mar 2025 13:07:41 +0100
Subject: [PATCH] Convert flexible field values to SQL before storing them

This is required to support multivalued fields as flexible fields.
---
 beets/dbcore/db.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/beets/dbcore/db.py b/beets/dbcore/db.py
index b780c5756..a569feba7 100755
--- a/beets/dbcore/db.py
+++ b/beets/dbcore/db.py
@@ -607,6 +607,7 @@ class Model(ABC, Generic[D]):
             for key, value in self._values_flex.items():
                 if key in self._dirty:
                     self._dirty.remove(key)
+                    value = self._type(key).to_sql(value)
                     tx.mutate(
                         "INSERT INTO {} "
                         "(entity_id, key, value) "