fs: fix bugs with external code filesystems

libraries/libvapours/include/vapours/util/util_bounded_map.hpp

@@ -116,7 +116,6 @@ namespace ams::util {
 
                 /* Find a free value. */
                 for (size_t i = 0; i < N; i++) {
-                    this->keys[i] = key;
                     if (!this->keys[i]) {
                         this->keys[i] = key;
                         new (GetPointer(this->values[i])) Value(std::forward<Args>(args)...);