If $LOADED_FEATURES is changed in the just required file, also the
index table needs to be updated before loaded_features_snapshot is
reset. If the snapshot is reset without updating the table, the
name of the added feature will not be found.
Related issues
Bug #18173: The feature in `$LOADED_FEATURES` is loaded again
Added by nobu (Nobuyoshi Nakada) almost 4 years ago
[Bug #18173] Update loaded_features_index
If $LOADED_FEATURES is changed in the just required file, also the
index table needs to be updated before loaded_features_snapshot is
reset. If the snapshot is reset without updating the table, the
name of the added feature will not be found.