<unclear> within <hi rend="diaeresis"> within <expan> does not work in Leiden+

[jcowey]

The following contains valid XML:

https://github.com/papyri/idp.data/blob/master/DDB_EpiDoc_XML/p.cair.masp/p.cair.masp.1/p.cair.masp.1.67006.xml#L306

<expan><hi rend="diaeresis"><unclear>ἰ</unclear></hi><unclear>ν</unclear>δικ<ex>τίονος</ex></expan>
which is the following in Leiden+
112. ( ἰ̣(¨)ν̣δικ(τίονος))
breaks when saved in Leiden+

112. ( ἰ(¨)ν̣δικ(τίονος))
without the underdot Leiden+ is fine

<expan><hi rend="diaeresis">ἰ</hi><unclear>ν</unclear>δικ<ex>τίονος</ex></expan>
is fine

one can, of course, save in XML as the correct:
<expan><hi rend="diaeresis"><unclear>ἰ</unclear></hi><unclear>ν</unclear>δικ<ex>τίονος</ex></expan>

and submit which I have done, but obviously it would be great to have xSugar be able to handle the underdot.