Thread:Support/Suggestion text overflows from height-limited frame

It seems somebody added  to , in order to limit the height of translation suggestions when translating. But I have a problem with long messages here (in Firefox 9.0.1): instead of displaying (another) scrollbar, the text overflows out of the (now 250px high) fieldset, overlapping the following frames (the message documentation and beyond). I have observed that at MediaWiki:Email-blacklist/cs.