Comment 6 for bug 619156

thanks for pointing that code out, indeed it should act as u said. Afaik in 2.31.6 it don't.
Don't know where it's coming from.

"I don't understand, it's the default behaviour with Ubuntu on 3 different computers."
which ubuntu version? maverick, lucid? which nautilus version?

maybe checking the commit we ll found what was modified, but first i need to know where it worked before.
because actually on 2.31.6 u can't even resize the sidebar with a 0 width, so the collapse thing just don't work.