This bug was in 1.6 ST as well - in 1.7 ST, you will notice that if you post a really long link in a ticket - it will cause an overflow and not wrap.
The fix:
1. Open class.format.php
2. In function "clickableurls" - search for:
target=\"_blank\">".$matches."</a>";',
3. Replace with:
target=\"_blank\">".wordwrap($matches,70,"\n",true)."</a>";',
4. Still in "function clickableurls" - search for:
target=\"_blank\">".$matches."</a>";',
5. Replace with:
target=\"_blank\">".wordwrap($matches,70,"\n",true)."</a>";',
(70 is the char it will break at)
I think this fix could be made even better if "function display" in the same class was modified to handle the above cases (which would avoid the duplication of code needed above) - but, this was a nice quick fix.
Enjoy! :)