fix(project): release commit-button receiver references

Generated-with: gpt-6.1-sol (Codex)

Author: Lukas Geiger

features/project_view.py

@@ -222,7 +222,7 @@ def _setup_ui(self):
             "Öffnet den Dialog zum Bereitstellen und Committen von Git-Änderungen."
         )
         self.btn_commit.setEnabled(False)
-        self.btn_commit.clicked.connect(lambda: self.open_commit_dialog())
+        self.btn_commit.clicked.connect(self._on_commit_clicked)
         header.addWidget(self.btn_commit)
 
         layout.addLayout(header)
@@ -338,6 +338,9 @@ def _setup_ui(self):
 
         layout.addWidget(self.tree)
 
+    def _on_commit_clicked(self, _checked=False):
+        self.open_commit_dialog()
+
     def set_workspace(self, workspace: Optional[WorkspaceManager]):
         """Verbindet die ProjectView mit dem WorkspaceManager."""
         if self._workspace is not None:

tests/test_project_view.py

@@ -1,4 +1,6 @@
 """Regressionstests für ProjectView und Pfadsync im Hauptfenster."""
+import gc
+import weakref
 from unittest.mock import patch
 
 from PySide6.QtWidgets import QApplication
@@ -11,6 +13,23 @@ def _ensure_app():
     return QApplication.instance() or QApplication([])
 
 
+def test_commit_button_dispatch_and_closed_view_collection():
+    app = _ensure_app()
+    references = []
+    for _ in range(3):
+        view = ProjectView()
+        with patch.object(view, "open_commit_dialog") as open_dialog:
+            view.btn_commit.setEnabled(True)
+            view.btn_commit.click()
+            open_dialog.assert_called_once_with()
+        references.append(weakref.ref(view))
+        view.close()
+        del view
+    gc.collect()
+    app.processEvents()
+    assert all(reference() is None for reference in references)
+
+
 def test_new_file_in_shows_error_on_write_failure(tmp_path):
     """Regression (B-008): _new_file_in() muss OSError abfangen und eine
     Fehlermeldung zeigen, statt die Ausnahme unkontrolliert zu propagieren."""