Problem with paracol: a particular use of "switchcolumn" differentiates column width

Please take a look at the following code and its output: The use of switchcolumn before itemize widens the column width (compared to the itemize1 sentence).

For some reasons, I need to keep on using this syntax and want to eliminate this difference. Is there any solution?

documentclass{article}
RequirePackage{paracol}

begin{document}
begin{paracol}{2}
begin{enumerate}
    item {} 
    enumerate sentence

    begin{itemize}
        item {} 
        subitemize1 subitemize1 subitemize1 subitemize1 subitemize1 subitemize1 subitemize1 subitemize1 subitemize1 subitemize1 subitemize1 subitemize1 subitemize1
    end{itemize}

    switchcolumn

interfering text

    switchcolumn

    begin{itemize}
        item {} 
        subitemize2 subitemize2 subitemize2 subitemize2 subitemize2 subitemize2 subitemize2 subitemize2 subitemize2 subitemize2 subitemize2 subitemize2 subitemize2
    end{itemize}

end{enumerate}
end{paracol}
end{document}

documentclass{article}
RequirePackage{paracol}

newlength{savewidth}

begin{document}
begin{paracol}{2}
begin{enumerate}
    item {} 
    enumerate sentence

    begin{itemize}
        item {} 
        subitemize1 subitemize1 subitemize1 subitemize1 subitemize1 subitemize1 subitemize1 subitemize1 subitemize1 subitemize1 subitemize1 subitemize1 subitemize1
    end{itemize}
savewidth=linewidth
    switchcolumn

interfering text

    switchcolumn
linewidth=savewidth

    begin{itemize}
        item {} 
        subitemize2 subitemize2 subitemize2 subitemize2 subitemize2 subitemize2 subitemize2 subitemize2 subitemize2 subitemize2 subitemize2 subitemize2 subitemize2
    end{itemize}

end{enumerate}
end{paracol}
end{document}