Parameters being added to URL many times

[devl00p]

The crawler may still generate URLs like this:

https://taget/script?pageId=327683&selectedPageVersions=58&selectedPageVersions=57&selectedPageVersions=56&selectedPageVersions=55&selectedPageVersions=54&selectedPageVersions=53&selectedPageVersions=50&selectedPageVersions=49&selectedPageVersions=48&selectedPageVersions=47&selectedPageVersions=46&selectedPageVersions=45&selectedPageVersions=44&selectedPageVersions=43&selectedPageVersions=42&--- snip ---&selectedPageVersions=6&selectedPageVersions=5&selectedPageVersions=4&selectedPageVersions=3&selectedPageVersions=2&selectedPageVersions=1

Obviously the cause must be scripts doing stuff like

echo '<a href="'.$url.'&selectedPageVersions='.str($version-1).'">link</a>'

I thought that kind of problem was already fixed. We sould make sure such behavior doesn't happen with GET and POST parameters