Latest Update Breaks ComboBox

[bhh32]

Issue

It looks like the latest update breaks the combo_box (ComboBox) widget.

Compiler Error

Code Snippets

When I try to use what the compiler is telling me to use, cosmic::Theme, I get an error when creating the combo_box (I've tried ComboBox::new() and the combo_box() function) because it's expecting cosmic::iced::Theme.

However, when I switch it to cosmic::iced::Theme it allows me to create the combo_box (using both ComboBox::new() and the combo_box() function), but I get the compiler error above. This is what the code looks like:

Here is the code with cosmic::iced::Theme without the blocking error messages: