Combobox activeOption doesn't work in tab after keypress or hover, how to set it manually?

[oawebdev]

Hello!
I use combobox with tabs for displaying results in separate tabs. When I start search it shows the first tab and first item set as activeOption. If I change the tab the first one is still set as active.

But when I use arrow keys or mouse hover on items in one tab and go to another tab there is no active items setted.
If I press arrow down key in this tab the second element set as active.

How can I set first item as active when I change the tab?

Code structure: