get_categories with custom taxonomy ignores "depth"

[yeswework]

in the following query:

$books = get_categories('taxonomy=book_title&depth=1');

depth=1 gets ignored, and all levels of the taxonomy are returned.

wp_list_categories works fine, on the other hand.

I'm assuming this is a bug...

[ocean90]

I can reproduce it with categories too, in 2.9 too. So not a regression.
Is it intentionally?

[ocean90]

wp_list_categories() supports the depth arg, see ​here
get_categories() uses get_terms() and ​get_terms() doesn't support the depth arg.

[nacin]

get_categories() does not take a depth argument.

As pointed out by filosofo, you can use wp_list_categories() with echo = 0.

[filosofo]

ocean90 pointed that out, but I agree. :-)