JSDoc unexpected leading whitespace behaviour with `@example` and `<caption>`

Bug Report

🔎 Search Terms

#15749 matches, but was last updated in June 2020 -- was informed to make a new issue

🕗 Version & Regression Information

• This is the behavior in every version I tried, and I reviewed the FAQ for entries about JSDoc and leading whitespace

⏯ Playground Link

Playground link with relevant code

💻 Code

// In the code block below, `sum(answer, 5)` is NOT indented, but it should be.
// `sum2(answer, 5)` is indented.


/**
 * Adds two numbers
 * 
 * @param a number one
 * @param b number two
 * @returns sum of number one and number two
 * 
 * @example <caption>Add 1 and 3. If answer is >0, sums result and 5.</caption>
 * ```
 * const answer = sum(1, 3); // returns 4
 * 
 * if (answer > 0) {
 *   sum(answer, 5)
 * }
 * ```
 */
function sum(a: number, b: number): number {
  return a + b
}


/**
 * Adds two numbers
 * 
 * @param a number one
 * @param b number two
 * @returns sum of number one and number two
 * 
 * @example <caption>Add 1 and 3. If answer is >0, sums result and 5.</caption>
 * ```
 *          const answer = sum2(1, 3); // returns 4
 * 
 *          if (answer > 0) {
 *            sum2(answer, 5)
 *          }
 * ```
 */
function sum2(a: number, b: number): number {
  return a + b
}

🙁 Actual behavior

The JSDoc produced for sum() has the example without any indentation, despite there being preceding whitespace.

This only happens when there is a <caption> tag present.

🙂 Expected behavior

The result should have the same indentation as present in the comment, preferably determined from the indentation of the code block backticks.

从链接的 TypeScript Playground 开始，比较提供的使用 的 JSDoc 示例，尤其关注 sum 和 sum2 中不同的缩进。跟踪 @example 内容和 caption 文本的处理方式；完成标准是生成的示例能够一致地保留注释的缩进，并且为这两种情况提供回归测试覆盖。