<unclear> sometimes split to multiple <unclear>s

[ryanfb]

Example:

<unclear>πόλ</unclear>

Becomes:

<unclear>π</unclear><unclear>όλ</unclear>

Files already exhibiting this phenomenon (NB: these all appear to be with <unclear> containing <g type="…">):

DDB_EpiDoc_XML/p.brux.bawit/p.brux.bawit.45.xml
DDB_EpiDoc_XML/p.cair.masp/p.cair.masp.2/p.cair.masp.2.67240.xml
DDB_EpiDoc_XML/p.oxy/p.oxy.54/p.oxy.54.3756.xml
DDB_EpiDoc_XML/p.sijp/p.sijp.36.xml

Files which would exhibit this phenomenon with an idempotent Leiden+ transform:

DDB_EpiDoc_XML/cpr/cpr.22/cpr.22.48.xml
DDB_EpiDoc_XML/o.ashm/o.ashm.6.xml
DDB_EpiDoc_XML/o.bodl/o.bodl.2/o.bodl.2.1849.xml
DDB_EpiDoc_XML/o.petr.mus/o.petr.mus.556.xml
DDB_EpiDoc_XML/o.theb/o.theb.16.xml
DDB_EpiDoc_XML/p.flor/p.flor.1/p.flor.1.93dupl.xml
DDB_EpiDoc_XML/p.mich/p.mich.11/p.mich.11.603.xml
DDB_EpiDoc_XML/p.palaurib/p.palaurib.13.xml
DDB_EpiDoc_XML/p.wisc/p.wisc.1/p.wisc.1.1.xml
DDB_EpiDoc_XML/psi.congr.xxi/psi.congr.xxi.6.xml