Function appendTagCondition

static/app/utils/queryString.tsx:43–71

(
  query: QueryValue,
  key: string,
  value: null | string
)

 * Handles spacing and quoting if necessary.
 */
export function appendTagCondition(
  query: QueryValue,
  key: string,
  value: null | string
): string {
  let currentQuery = Array.isArray(query)
    ? query.pop()
    : typeof query === 'string'
      ? query
      : '';

  if (
    typeof value === 'string' &&
    // TODO(JoshuaKGoldberg):
    //   Unnecessary escape character: \(  regexp/no-useless-escape
    //   Unnecessary escape character: \)  regexp/no-useless-escape
    // eslint-disable-next-line regexp/no-useless-escape
    new RegExp(TAG_VALUE_ESCAPE_PATTERN).test(value)
  ) {
    value = `"${escapeDoubleQuotes(value)}"`;
  }
  if (currentQuery) {
    currentQuery += ` ${key}:${value}`;
  } else {
    currentQuery = `${key}:${value}`;
  }

  return currentQuery;
}

export function appendExcludeTagValuesCondition(
  query: QueryValue,