bastodon/app/javascript/mastodon/utils/filters.js

export const toServerSideType = columnType => {
  switch (columnType) {
  case 'home':
  case 'notifications':
  case 'public':
  case 'thread':
  case 'account':
    return columnType;
  default:
    if (columnType.indexOf('list:') > -1) {
      return 'home';
    } else {
      return 'public'; // community, account, hashtag
    }
  }
};