[Tkinter] Tkinter delete combobox content and not the list

[LagratteCchouette]

Great, you're really cool. Wedge works very well, that's right

def clear():
    """ Delete textbox after records """
    
    combo_auteur.delete('0','end')
    combo_theme.delete('0','end')
    entry_citation.delete('1.0', END)
    entry_ref.delete('1.0', END)