Changing g:mix_format_on_save on the fly

[abravalheri]

Hi, thank you very much for the plugin, it is much faster then what I was doing before.

I have a quick question though... It is not possible to change g:mix_format_on_save dynamically, right? For example if I want to avoid to auto formatting an specific file while still working in a single vim session that uses auto format for other buffers, manually doing let g:mix_forma_on_save=0 will not prevent the file to be changed by the plugin, right?

By looking at the code it seems that the augroup is set when the plugin is loaded and then not touched anymore...