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            <b><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - FILEOPEN: PPTX: File format error found at SfxBaseModel::storeToStorage: 0x20d(row,col) – works w/ PowerPoint 2013"
   href="https://bugs.documentfoundation.org/show_bug.cgi?id=129372#c9">Comment # 9</a>
              on <a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - FILEOPEN: PPTX: File format error found at SfxBaseModel::storeToStorage: 0x20d(row,col) – works w/ PowerPoint 2013"
   href="https://bugs.documentfoundation.org/show_bug.cgi?id=129372">bug 129372</a>
              from <span class="vcard"><a class="email" href="mailto:serval2412@yahoo.fr" title="Julien Nabet <serval2412@yahoo.fr>"> <span class="fn">Julien Nabet</span></a>
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        <pre>Created <span class=""><a href="http://bugs.documentfoundation.org/attachment.cgi?id=159432" name="attach_159432" title="bt">attachment 159432</a> <a href="http://bugs.documentfoundation.org/attachment.cgi?id=159432&action=edit" title="bt">[details]</a></span>
bt

Part of bt where partial d is analyzed
On ICU, I found this line:
source/data/unidata/confusables.txt:1115:1D715 ;        2202 ;  MA      #* ( 𝜕
→ ∂ ) MATHEMATICAL ITALIC PARTIAL DIFFERENTIAL → PARTIAL DIFFERENTIAL    #</pre>
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