Merge branch 'nullpath' into 'master'

Don't build paths containing \0

See merge request OpenMW/openmw!5206

Author: Capostrophic

components/files/windowspath.cpp

@@ -61,7 +61,14 @@ namespace Files
                 {
                     // This should always be true. Note that we don't need to care above because of the trailing \0
                     if (len % sizeof(wchar_t) == 0)
-                        return std::filesystem::path(buffer.data(), buffer.data() + len / sizeof(wchar_t));
+                    {
+                        std::wstring_view view(buffer.data(), len / sizeof(wchar_t));
+                        // Strip trailing \0 because the path constructor won't do it for us
+                        const auto pos = view.find(L'\0');
+                        if (pos != std::wstring_view::npos)
+                            view = view.substr(0, pos);
+                        return std::filesystem::path(view);
+                    }
                 }
             }
             return {};