Arbitrary length limit for analysis URLs?

Trying to transfer something like this song triggers this error message:

Array ( [page_url] => Array ( [0] => Page Url is too long (maximum is 100 characters). ) )

Neither the artist nor the title exceeds the given character count. In comparison, here is a transfer of the same song that works (at the expense of less clarity about where the song comes from). Please remove one of the entries depending on whether this is going to be fixed.