Config 'show_in_customizer' => true' in Block based themes, duplicated the total option framework in submenu view.

[arafatjamil01]

I have Twenty twenty-three default WordPress theme installed,

Apart from framework title and framework class, I have used the following configuration.

'menu_type' => 'submenu'

But when I tried to config -

'show_in_customizer' => true'

The whole option panel just repeated, showing one below the other, same to same options. The submenu names also repeated.

WP Version - 6.1.1

Screenshot attached.