Fix project reload not disabling window on failure

CHANGELOG.md

@@ -43,6 +43,7 @@ The **"Breaking Changes"** listed below are changes that have been made in the d
 - Fix some issues when too few/many pokémon are specified for a wild encounter group.
 - Fix Porymap reporting errors for macros it doesn't use.
 - Fix painting on the Collision tab with the opacity slider at 0 painting metatiles.
+- Fix crashes when File->Reload Project fails.
 
 ## [5.1.1] - 2023-02-20
 ### Added

src/mainwindow.cpp

@@ -643,7 +643,8 @@ void MainWindow::on_action_Reload_Project_triggered() {
     warning.setIcon(QMessageBox::Warning);
 
     if (warning.exec() == QMessageBox::Ok) {
-        openProject(editor->project->root);
+        if (!openProject(editor->project->root))
+            setWindowDisabled(true);
     }
 }