I use the Vimeo API for managing showcases (because the Web-GUI für showcases is so bad). But this question is a more general one, regarding the sort parameter for showcases, wether it's set via the API or in the Web-GUI.

When the sort parameter is set to "alphabetical", Vimeo seems to be sorting quite intelligently: it usually sorts a list of videos with names like

1 First Video
2 Second Video
3 Third Video
4 Fourth Video
10 Tenth Video

according to the leading number, without leading zeros needed for the numbers to be sorted correctly.

But sometimes it just ignores the numbers and sorts according to the following string (in this case "First Video", "Tenth Video", etc…)

Does anyone have a clue why it behaves like this? Is there a fix or a hack to get it to not ignore the leading numbers?