fix: Settings sometimes being reset on shutdown

lib/libimhex/include/hex/helpers/auto_reset.hpp

@@ -58,6 +58,13 @@ namespace hex {
             return m_value;
         }
 
+        bool isValid() const {
+            return m_valid;
+        }
+
+    private:
+        friend void ImHexApi::System::impl::cleanup();
+
         void reset() override {
             if constexpr (requires { m_value.reset(); }) {
                 m_value.reset();
@@ -68,9 +75,12 @@ namespace hex {
             } else {
                 m_value = { };
             }
+
+            m_valid = false;
         }
 
     private:
+        bool m_valid = true;
         T m_value;
     };
 

lib/libimhex/source/api/content_registry.cpp

@@ -128,7 +128,10 @@ namespace hex {
                 }
 
                 void store() {
-                    const auto &settingsData = getSettingsData();
+                    if (!s_settings.isValid())
+                        return;
+
+                    const auto &settingsData = *s_settings;
 
                     // During a crash settings can be empty, causing them to be overwritten.
                     if (settingsData.empty()) {

lib/libimhex/source/api/imhex_api.cpp

@@ -216,7 +216,7 @@ namespace hex {
         }
 
         void clearSelection() {
-            impl::s_currentSelection.reset();
+            impl::s_currentSelection->reset();
         }
 
         void setSelection(const Region &region, prv::Provider *provider) {

lib/libimhex/source/api/layout_manager.cpp

@@ -134,8 +134,8 @@ namespace hex {
     }
 
     void LayoutManager::reset() {
-        s_layoutPathToLoad.reset();
+        s_layoutPathToLoad->reset();
-        s_layoutStringToLoad.reset();
+        s_layoutStringToLoad->reset();
         s_layouts->clear();
     }