From further testing, it seems this new "repeat link" bug may have something to do with hyperlinking.It doesn't work, at least in all circumstances. I'm having no luck with toggling BB codes, in some cases it makes the problem worse. What I don't understand is how such a destructive bug is still active on the board. Whatever change or set of changes that cause this should have been reverted immediately until y'all figure this out. Not acceptable guys.
The workaround that actually seems to work is to not put multiple links in single post, post them in two separate posts instead but this goes against board rules. You can also try the "insert link" function for the second link. Where all this falls apart is that if you insert a girls name that turns into a link to her thread, that can also trigger this ugly bug.
Update: the best workaround I've found after fighting with this bug all morning is to add the second and subsequent links in a post using the "insert link" paper-clip button.
Clay had a post that was repeating and I edited it and inserted a hyphen between the first & last name on the names that were hyperlinked. That stopped the repeating.
This bug may be caused by several factors, but I can't be sure without more investigation.
Let me know if you guys have any luck with this method.