<document source="test data">
    <section ids="level-1" names="level 1">
        <title auto="1">
            <generated classes="sectnum">
                I\u00a0\u00a0\u00a0
            Level 1
        <section ids="level-2" names="level 2">
            <title auto="1">
                <generated classes="sectnum">
                    I.A\u00a0\u00a0\u00a0
                Level 2
            <section ids="level-3" names="level 3">
                <title auto="1">
                    <generated classes="sectnum">
                        I.A.i\u00a0\u00a0\u00a0
                    Level 3
                <section ids="level-4" names="level 4">
                    <title auto="1">
                        <generated classes="sectnum">
                            I.A.i.a\u00a0\u00a0\u00a0
                        Level 4
                    <section ids="level-5" names="level 5">
                        <title auto="1">
                            <generated classes="sectnum">
                                I.A.i.a.(1)\u00a0\u00a0\u00a0
                            Level 5
                        <section ids="level-6" names="level 6">
                            <title auto="1">
                                <generated classes="sectnum">
                                    I.A.i.a.(1).1\u00a0\u00a0\u00a0
                                Level 6
                    <section ids="another-level-5" names="another level 5">
                        <title auto="1">
                            <generated classes="sectnum">
                                I.A.i.a.(2)\u00a0\u00a0\u00a0
                            Another Level 5
            <section ids="another-level-3" names="another level 3">
                <title auto="1">
                    <generated classes="sectnum">
                        I.A.ii\u00a0\u00a0\u00a0
                    Another Level 3