Try removing
https://bitcointalk.org from the links to make the post shorter. These are the same:
[url=https://bitcointalk.org/index.php?topic=1775207.msg17740024#msg17740024]17740024[/url]
[url=/index.php?topic=1775207.msg17740024#msg17740024]17740024[/url]
Yes, removing
https://bitcointalk.org is not affecting it being a valid URL but when I go again for editing the post, I do see
https://bitcointalk.org is getting populated automatically.
So, copying the URLs part into some other notepad temporarily (without
https://bitcointalk.org) and pasting them back into the post just before the LAST edit may serve its purposes

.