Moved from #4010 h/t @bradyvercher.

Edit Wrapper Data Attribute

Most of the blocks apply a data-align attribute to the edit wrapper with the alignment value similar to this:

getEditWrapperProps( attributes ) {
    const { align } = attributes;
    if ( 'left' === align || 'right' === align || 'wide' === align || 'full' === align ) {
        return { 'data-align': align };
    }
}

Center aligning never seems to change the value of the data attribute for the edit wrapper despite it being a valid value for most blocks. It seems like this should be applied consistently in case themes treat aligncenter different than alignnone or an empty value.