Category Tree selection display confusing

[ Moderator note: moved to Fixing WordPress. ]

hi

i’m using 2 levels of categories for the first time ever. and so i noticed one quite a confusing moment. maybe it’s me, i don’t know…

when adding categories to the post, if i select any of the parent categories, they disappear from the category tree. the remaining children of that category are then presented as 1st level categories, because their parent is removed from the list. it very confusing, especially if 2 different parent categories have same or similar named children categories.

i wanted to suggest, maybe it’ll be more convenient to keep those parent categories in the tree and present the tree in its normal form, just make already added parents unselectable…

thanks for your time and great work!