Defer closing until batch cancellation and cleanup finish

tools/chatgui/tests/test_member_files_browser.cpp

@@ -401,6 +401,18 @@ private slots:
             QApplication::sendEvent(tree->viewport(), &move);
             QTest::mouseRelease(tree->viewport(), Qt::LeftButton, Qt::NoModifier, point + QPoint(40, 0));
             QVERIFY(received); QCOMPARE(transfers.size(), 4); transferStarted = {};
+            if (dragStatus == MF_CANCELLED) {
+                QPointer<MemberFileBrowser> closing = new MemberFileBrowser(&db);
+                closing->setChannel("42", 11); closing->show();
+                auto* closingTree = closing->findChild<QTreeWidget*>();
+                auto* closingItem = new QTreeWidgetItem(closingTree, {"pending.txt"});
+                closingItem->setData(0, Qt::UserRole, "pending.txt"); closingItem->setData(0, Qt::UserRole + 1, MF_FILE);
+                closingItem->setData(0, Qt::UserRole + 2, QByteArray(16, '\7')); closingTree->setCurrentItem(closingItem);
+                closing->findChild<QAction*>("memberFilesCopy")->trigger(); QTRY_COMPARE(transfers.size(), 5);
+                auto pending = transfers.last(); QString temporary = QFileInfo(QString::fromUtf8(pending.local)).absolutePath();
+                closing->close(); QVERIFY(closing); QVERIFY(cancelled.contains(pending.id));
+                complete(*closing, pending, MF_CANCELLED); QTRY_VERIFY(closing.isNull()); QVERIFY(!QFileInfo::exists(temporary));
+            }
         }
         QVERIFY(QFile::exists(exported)); // Закрытие Group files не ломает локальный URI.
         db.setDb(nullptr); QCOMPARE(sqlite3_close(sql), SQLITE_OK);