Last modified: 2013-01-30 15:39:03 UTC
If you use the url parameter &from= with a letter, it happens that there are no previous pages (especially in smaller categories). Nevertheless, there is always a blue link to (Previous 200) (and the other way around, if you use &until= there is a (Next 200) link). Maybe the software should check if the first page listed matches with the first page listed in the category and only if this is not the case the link should be offered (and respectively for the right edge).
Also confirming for https://en.wiktionary.org/wiki/Category:Abbreviations,_acronyms_and_initialisms_by_language?from=a