Saved coordinates are no longer changed when the emulator is in full screen, fixes #3485.

src/qt/qt_mainwindow.cpp

@@ -1709,6 +1709,7 @@ void
 MainWindow::on_actionRemember_size_and_position_triggered()
 {
     window_remember ^= 1;
+    if (!video_fullscreen) {
         window_w = ui->stackedWidget->width();
         window_h = ui->stackedWidget->height();
         if (!QApplication::platformName().contains("wayland")) {
@@ -1723,6 +1724,7 @@ MainWindow::on_actionRemember_size_and_position_triggered()
                 monitor_settings[i].mon_window_y = renderers[i]->geometry().y();
             }
         }
+    }
     ui->actionRemember_size_and_position->setChecked(window_remember);
 }