From b839bf6b05dfe500db8ddcd82f1dd37fb77a0c72 Mon Sep 17 00:00:00 2001
From: Sebastian Mohr <sebastian@mohrenclan.de>
Date: Fri, 19 Dec 2025 23:18:26 +0100
Subject: [PATCH] Set the class module during plugin registration to not
 trigger the plugin load dedup.

---
 beets/test/helper.py | 4 +---
 test/test_plugins.py | 6 +++---
 2 files changed, 4 insertions(+), 6 deletions(-)

diff --git a/beets/test/helper.py b/beets/test/helper.py
index 1488a24fa..e70f8b844 100644
--- a/beets/test/helper.py
+++ b/beets/test/helper.py
@@ -571,12 +571,10 @@ class PluginMixin(TestHelper):
             beetsplug_pkg.__path__ = []
             sys.modules[PLUGIN_NAMESPACE] = beetsplug_pkg
 
-        # Create the plugin module
-        if full_namespace in sys.modules:
-            raise ValueError(f"Plugin {name} already registered")
         module = types.ModuleType(full_namespace)
         module.__file__ = f"<{full_namespace}>"
         module.__package__ = PLUGIN_NAMESPACE
+        plugin_class.__module__ = full_namespace
         setattr(module, plugin_class.__name__, plugin_class)
 
         # Register in sys.modules and as attribute of parent package
diff --git a/test/test_plugins.py b/test/test_plugins.py
index b169a3d9b..34d679d82 100644
--- a/test/test_plugins.py
+++ b/test/test_plugins.py
@@ -83,9 +83,9 @@ class TestPluginRegistration(PluginTest):
         delimiter = types.MULTI_VALUE_DSV.delimiter
         assert out == f"one{delimiter}two{delimiter}three\n"
 
-    def test_duplicate_field_typ(self):
-        """Test that if another plugin tries to register the same type,
-        a PluginConflictError is raised.
+    def test_duplicate_field_type(self):
+        """A PluginConflictError should be raised if
+        another plugin tries to register the same field_type str.
         """
 
         class DuplicateDummyPlugin(plugins.BeetsPlugin):