Source List Nesting Appearance in frus1977-80v01

[WaxCylinderRevival]

I could be misinterpreting, but in volume frus1977-80v01, the presentation of the online source list doesn't seem to match the nested lists in the PDF. To my eye, the online version appears to be flattened:

https://history.state.gov/historicaldocuments/frus1977-80v01/sources

https://static.history.state.gov/frus/frus1977-80v01/pdf/frus1977-80v01.pdf

I checked the XML file and thought two examples were immediately interesting:

1. In the XML, P/D/N Reels seemed to be properly nested under the Central Foreign Policy File so perhaps there is an issue is style/format rendering?
2. Under NARA, I believe RG 59 should be the parent to the Lot Files, D Files, etc. that follow; however, these hierarchical children are listed as sibling items and not nested in a subordinate list.

<list type="sources">
                    <item>
                        <hi rend="strong">Department of State, Washington, D.C.</hi>
                        <list>
                            <item>
                                <hi rend="italic">Central Foreign Policy File.</hi> These files have
                                been transferred or will be transferred to the National Archives and
                                Records Administration in College Park, Maryland. <list>
                                    <item>P Reels</item>
                                    <item>D Reels</item>
                                    <item>N Reels</item>
                                </list>
                            </item>
                            <item>Lot Files. These files have been transferred or will be
                                transferred to the National Archives and Records Administration in
                                College Park, Maryland.</item>
                            <item>S/S Files: Lot 84D241 <list>
                                    <item>Records of Secretary of State <persName corresp="#p_VCR_1"
                                            >Cyrus Vance</persName>, 1977–1980</item>
                                </list>
                            </item>
                        </list>
                    </item>
                    <item>
                        <hi rend="strong">National Archives and Records Administration, College
                            Park, Maryland</hi>
                        <list>
                            <item>
                                <hi rend="strong">Record Group 59, General Records of the Department
                                    of State</hi>
                            </item>
                            <item>Lot Files</item>
                            <item>D Files: Lot 81D113 (Entry P–14) <list>
                                    <item>Records of Deputy Secretary of State <persName
                                            corresp="#p_CWM_1">Warren Christopher</persName>,
                                        1977–1980</item>
                                </list>
                            </item>

                            ...

                        </list>
                    </item>
                </list>

So perhaps there are two distinct issues of HTML rendering and XML nesting to explore? If you'd like me to do a closer analysis of frus1977-80v01 and/or look at other source lists, please let me know, @joewiz.

Thanks!