The same thing happens when the number of spaces before a link is a multiple of 2.
7 spaces before the link:
https://bitcointalk.org/index.php?board=24.08 spaces before the link:
https://bitcointalk.org/index.php?board=24.0
Perhaps, we should consider it that odd number of spaces work while spaces that are even in number render a link non-clickable. If two spaces removes hyperlinks but three spaces doesn't, that seems to also be my assumption here.