Last Bullet List Item Not Displayed on iOS Devices

On iOS devices, the last line of the bullet list is not showing up when the message is sent using blocks.
This issue doesn't occur on desktop or Android devices where it displays as expected.
(See screenshots and code provided below.)

Reproducible in:

The Slack SDK version

slack_sdk==3.27.1

Python runtime version

Python 3.11.7

OS info

Darwin Kernel Version 23.3.0: Wed Dec 20 21:28:58 PST 2023; root:xnu-10002.81.5~7/RELEASE_X86_64

Steps to reproduce:

import os
from slack_sdk import WebClient

channel = os.environ["SLACK_CHANNEL"]
slack_token = os.environ["SLACK_BOT_TOKEN"]

client = WebClient(token=slack_token)

blocks = [
    {'type': 'section', 'text': {'type': 'mrkdwn', 'text': 'Bullet list:'}}, 
    {'type': 'section', 'text': {'type': 'mrkdwn', 'text': '• `john.doe@example.com`\n• `john.smith@example.com`'}}
]

client.chat_postMessage(
    channel=channel, blocks=blocks
)

Expected result:

Actual result:

Requirements

For general questions/issues about Slack API platform or its server-side, could you submit questions at https://my.slack.com/help/requests/new instead. 🙇

Please read the Contributing guidelines and Code of Conduct before creating this issue or pull request. By submitting, you are agreeing to those rules.

Inizia con la chiamata chat_postMessage e il payload blocks mostrati nell’issue, quindi riproduci la differenza di rendering su iOS e desktop. Il payload non indica alcun file o test del repository, quindi determina se il Python SDK modifica il contenuto del blocco prima dell’invio. Il lavoro è completato quando vengono identificati una correzione lato SDK e un test di regressione, oppure viene confermato che il comportamento è esterno a questo repository.