config-reload shouldn't go back to default on config error

[emilyyyylime]

When making changes to config.toml and running config-reload to quickly check your changes, if you made an error (invalid syntax/key) the reload would unset all previous options that were active from the config.toml file. This is personally annoying to me as I set C-s to :w and when I go to fix my error my keybind no longer works. Also the cursors changing is annoying.