get_terms() fails to work with parent=0

[Denis-de-Bernardy]

It then returns all terms.

[filosofo]

I can't reproduce this on trunk. When I query get_terms('category','parent=0'); it returns all categories at the top of the hierarchy. In other words, those without parents, which is the expected behavior.

[Denis-de-Bernardy]

Attached patch makes it work as expected, and I found no trace of the argument getting used in WP. It might have some minor side effects on plugins.

Please give early feedback, so I whether I should seek a workaround for my plugin.

[Denis-de-Bernardy]

Replying to filosofo:

I can't reproduce this on trunk. When I query get_terms('category','parent=0'); it returns all categories at the top of the hierarchy. In other words, those without parents, which is the expected behavior.

It what I thought too, until I added a post in the empty subcat I created to verify.

[ryan]

(In [11476]) Fix parent=0 queries. Props Denis-de-Bernardy 107 minutes ago. . fixes #9960