Are women converts an exception to the rule of travelling alone?

From sunnah.org : > Other than what is stated from the Hanafi madhhab in the Reliance, **the only dispensations I have seen for a woman to travel alone are**: ... - **If she is a non-Muslim who became Muslim**, or a slave who was freed, and or a Muslim woman escaping from Dar al-kufr. See Fath al-Bari , 1989 ed. 4:93, al-Mughni 1994 ed. 3:168, and Nayl al- awtar 4:291. This took me by surprise, and I'm sceptical about it's truth. However, it does give references which look reliable, so there's probably something behind the claim. **Question**: Are women converts an exception to the rule of travelling alone?