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    <body><span class="vcard"><a class="email" href="mailto:ilmari.lauhakangas@libreoffice.org" title="Buovjaga <ilmari.lauhakangas@libreoffice.org>"> <span class="fn">Buovjaga</span></a>
</span> changed
          <a class="bz_bug_link 
          bz_status_NEEDINFO "
   title="NEEDINFO - Exporting a large document as EPUB hangs the system"
   href="https://bugs.documentfoundation.org/show_bug.cgi?id=129262">bug 129262</a>
          <br>
             <table border="1" cellspacing="0" cellpadding="8">
          <tr>
            <th>What</th>
            <th>Removed</th>
            <th>Added</th>
          </tr>

         <tr>
           <td style="text-align:right;">Status</td>
           <td>UNCONFIRMED
           </td>
           <td>NEEDINFO
           </td>
         </tr>

         <tr>
           <td style="text-align:right;">Ever confirmed</td>
           <td>
                
           </td>
           <td>1
           </td>
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         <tr>
           <td style="text-align:right;">CC</td>
           <td>
                
           </td>
           <td>ilmari.lauhakangas@libreoffice.org
           </td>
         </tr></table>
      <p>
        <div>
            <b><a class="bz_bug_link 
          bz_status_NEEDINFO "
   title="NEEDINFO - Exporting a large document as EPUB hangs the system"
   href="https://bugs.documentfoundation.org/show_bug.cgi?id=129262#c6">Comment # 6</a>
              on <a class="bz_bug_link 
          bz_status_NEEDINFO "
   title="NEEDINFO - Exporting a large document as EPUB hangs the system"
   href="https://bugs.documentfoundation.org/show_bug.cgi?id=129262">bug 129262</a>
              from <span class="vcard"><a class="email" href="mailto:ilmari.lauhakangas@libreoffice.org" title="Buovjaga <ilmari.lauhakangas@libreoffice.org>"> <span class="fn">Buovjaga</span></a>
</span></b>
        <pre>(In reply to Alberto Salvia Novella from <a href="show_bug.cgi?id=129262#c5">comment #5</a>)
<span class="quote">> Created <span class=""><a href="http://bugs.documentfoundation.org/attachment.cgi?id=156912" name="attach_156912" title="Book.odt">attachment 156912</a> <a href="http://bugs.documentfoundation.org/attachment.cgi?id=156912&action=edit" title="Book.odt">[details]</a></span>
> Book.odt

> In order to satisfy the bug tracker upload file size limit, I have cut the
> document into the first 50 pages.</span >

Please confirm: does it hang for you with this? By hanging, what do you mean?
It never completes? It completes, but the resource consumption is outrageous?

I had no problem exporting the file to EPUB and it only took a few seconds.

Arch Linux 64-bit
Version: 7.0.0.0.alpha0+
Build ID: 623d6cf06ccba392c1993a3b0ad271d508205e73
CPU threads: 8; OS: Linux 5.6; UI render: default; VCL: kf5; 
Locale: fi-FI (fi_FI.UTF-8); UI-Language: en-US
Calc: threaded
Built on 29 April 2020</pre>
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