QHash remove item while iterating?

[Publicnamer]

I'm interating through a QHash and I want to modify the key of an item as I find it.
e.g.

if (i.key() == 123) then { 
   // remove this item to reinsert later with a key of 456
}

However can I remove the item during the iteration?
Or better yet, is there a way to modify the key on the fly without doing a remove+insert?

[jsulm]

@Publicnamer It's all in the documentation: https://doc.qt.io/qt-5/qhash.html#erase