Sidebar & multi tabs

Hi guys,
I’m encountering a problem with my sidebar content. It appears on every tab click, but I only want it to appear when the user clicks on tab2. Can you help me understand why this is happening and how I can fix it?
Here is my code
Thank you

    tab1, tab2, tab3 = st.tabs(["tab1", "tab2", "tab3"])
    with tab1:
        'This is tab1'
    with tab2:
        'This is tab2'
        with st.sidebar:
    with tab3:
        'This is tab3'

It is a normal behavior, see the warning.

ahh okay, thank you ferdy