Over-escape for URL and time format is triggered by styling and <Escape>

[yhatt]

<Escape> and format with corresponded special characters will break URL and time format by over-escaping.

<Blocks>
  <Section>
    <p><a href="https://example.com/a_b_c">link</a></p>
    <p><time datetime={1234567890} fallback="fail">{date} {time_secs}</time></p>
  </Section>
  <Section>
    <Escape>
      <p><a href="https://example.com/a_b_c">link</a></p>
      <p><time datetime={1234567890} fallback="fail">{date} {time_secs}</time></p>
    </Escape>
  </Section>
  <Section>
    <i>
      <p><a href="https://example.com/a_b_c">link</a></p>
      <p><time datetime={1234567890} fallback="fail">{date} {time_secs}</time></p>
    </i>
  </Section>
</Blocks>

{
  "blocks": [
    {
      "type": "section",
      "text": {
        "type": "mrkdwn",
        "text": "<https://example.com/a_b_c|link>\n\n<!date^1234567890^{date} {time_secs}|fail>",
        "verbatim": true
      }
    },
    {
      "type": "section",
      "text": {
        "type": "mrkdwn",
        "text": "<https://example.com/aˍbˍc|link>\n\n<!date^1234567890^{date} {timeˍsecs}|fail>",
        "verbatim": true
      }
    },
    {
      "type": "section",
      "text": {
        "type": "mrkdwn",
        "text": "_<https://example.com/aˍbˍc|link>_\n\n_<!date^1234567890^{date} {timeˍsecs}|fail>_",
        "verbatim": true
      }
    }
  ]
}

URL in <a> link is broken by escaping, and <time> tag shows as fallback text.

<a> tag has a workaround: Move <Escape>/ styling element into the inside of <a> tag.