[Project_owners] A XUL problem when using overflow and collapsed

[Jesper Staun Hansen]

Hello,

Do this and you'll know what I am talking about:
1. Open https://www.heroes-addon.dk/files/addon/preview/raid/raid.xul
2. Adjust the height of the window so a vertical scrollbar is visible 
(or you probably wont see it)
3. Click "Kommende raids" and/or "Afsluttede raids"
4. Note that the height of the <vbox> which has a overflow:auto; style 
seems to expand the height of the vbox with 100px.


Question now is: Why does the most parent vbox become so big?