Fix editor scene persistence and XC scene workflow

editor/src/Core/EditorConsoleSink.cpp

@@ -3,14 +3,22 @@
 namespace XCEngine {
 namespace Debug {
 
+EditorConsoleSink* EditorConsoleSink::s_instance = nullptr;
+
 EditorConsoleSink* EditorConsoleSink::GetInstance() {
-    static EditorConsoleSink instance;
-    return &instance;
+    static EditorConsoleSink fallbackInstance;
+    return s_instance ? s_instance : &fallbackInstance;
 }
 
-EditorConsoleSink::EditorConsoleSink() = default;
+EditorConsoleSink::EditorConsoleSink() {
+    s_instance = this;
+}
 
-EditorConsoleSink::~EditorConsoleSink() = default;
+EditorConsoleSink::~EditorConsoleSink() {
+    if (s_instance == this) {
+        s_instance = nullptr;
+    }
+}
 
 void EditorConsoleSink::Log(const LogEntry& entry) {
     std::lock_guard<std::mutex> lock(m_mutex);
@@ -26,7 +34,8 @@ void EditorConsoleSink::Log(const LogEntry& entry) {
 void EditorConsoleSink::Flush() {
 }
 
-const std::vector<LogEntry>& EditorConsoleSink::GetLogs() const {
+std::vector<LogEntry> EditorConsoleSink::GetLogs() const {
+    std::lock_guard<std::mutex> lock(m_mutex);
     return m_logs;
 }
 
@@ -40,4 +49,4 @@ void EditorConsoleSink::SetCallback(std::function<void()> callback) {
 }
 
 } // namespace Debug
-} // namespace XCEngine
+} // namespace XCEngine