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        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_UNCONFIRMED "
   title="UNCONFIRMED - Crash after undo redo operation"
   href="https://bugs.documentfoundation.org/show_bug.cgi?id=117152">117152</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>Crash after undo redo operation
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>LibreOffice
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>6.1.0.0.alpha0+ Master
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>All
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>All
          </td>
        </tr>

        <tr>
          <th>Status</th>
          <td>UNCONFIRMED
          </td>
        </tr>

        <tr>
          <th>Severity</th>
          <td>normal
          </td>
        </tr>

        <tr>
          <th>Priority</th>
          <td>medium
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>Writer
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>libreoffice-bugs@lists.freedesktop.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>telesto@surfxs.nl
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Description:
Crash after undo redo operation (might be related to <a class="bz_bug_link 
          bz_status_RESOLVED  bz_closed"
   title="RESOLVED FIXED - CRASH: Crash after undo operation (BigPtrArray::Index2Block(unsigned long)"
   href="show_bug.cgi?id=107975">bug 107975</a>)

Steps to Reproduce:
1. Open <span class=""><a href="http://bugs.documentfoundation.org/attachment.cgi?id=133424" name="attach_133424" title="Example file">attachment 133424</a> <a href="http://bugs.documentfoundation.org/attachment.cgi?id=133424&action=edit" title="Example file">[details]</a></span> (<a class="bz_bug_link 
          bz_status_RESOLVED  bz_closed"
   title="RESOLVED FIXED - CRASH: Crash after undo operation (BigPtrArray::Index2Block(unsigned long)"
   href="show_bug.cgi?id=107975">bug 107975</a>)
2. CTRL+A CTRL+X
3. Delete the remaining image
4. Paste
5. Hold Undo (sorry to lazy to figure out how many times)
6. Hold Redo (sorry to lazy to figure out how many times) -> Crash


Actual Results:  
Crash

Expected Results:
No crash


Reproducible: Always


User Profile Reset: No



Additional Info:
Version: 6.1.0.0.alpha0+
Build ID: 9c4eaa7b81a40d97fe49b85272b40bfeaaf44f86
CPU threads: 4; OS: Windows 6.3; UI render: default; 
TinderBox: Win-x86@42, Branch:master, Time: 2018-04-16_03:31:36
Locale: nl-NL (nl_NL); Calc: CL


User-Agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:52.0) Gecko/20100101
Firefox/52.0</pre>
        </div>
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