[Tilesathome] z12 caption tile request?

[Rob Reid]

I installed a new client and was running a couple of tilesets without 
loop mode to check everything was ok when I got the following :

    rob at rob-desktop:~/tilesAtHome$ ./tilesGen.pl
    - Using working directory /tmp
    - Keeping ZIP files after upload
    - Pngcrush version 1.6.4
    - pngnq version 0.5
    - Inkscape version 0.46
    - rendering using or/p
    This is version 10416 (Saurimo) of tilesgen running on linux, ID: 54630
    [#1   0% Download] Tileset (12,2273,1387) around 50.09,19.82   
    [#1   0% Download] Checking for UTF-8 errors...         readline()
    on closed filehandle $fpSvg at ./tilesGen.pl line 896.
    [#1   0% caption] if you want to run this program continuously, use
    loop mode
    [#1   0% caption] please run "tilesGen.pl upload" now

It looks like server is handing out some z12 caption requests that I 
assume someone has requested in error.
Looking on the 'show requests' page I can see at least a couple that 
clients can't handle:

    2274,1387    12-17    1    caption    1 day, 16 hours    45
    minutes    Elwood (44460)
    2273,1387    12-17    1    caption    1 day, 22 hours    47
    minutes    rcr (54630)
    2124,1373    12-17    1    lowzoom,caption    3 days, 21 hours    49
    minutes    yakii (25155)

Is there some way we can filter out invalid requests so the clients 
don't waste time on them?

Cheers

rcr