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      <base href="https://bugs.documentfoundation.org/">
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    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_UNCONFIRMED "
   title="UNCONFIRMED - CRASH/Assertion when undoing columns"
   href="https://bugs.documentfoundation.org/show_bug.cgi?id=116640">116640</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>CRASH/Assertion when undoing columns
          </td>
        </tr>

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

        <tr>
          <th>Version</th>
          <td>6.0.0.0.alpha1+
          </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 when undoing columns

Steps to Reproduce:
1. Open Writer
2. Insert -> Section -> Columns
3. Create 2 columns -> Press Insert
4. Insert some text "XXX" into the first bracket
5. Press CTRL+Z twice -> Crash

Actual Results:  
Crash

Expected Results:
No crash


Reproducible: Always


User Profile Reset: No



Additional Info:
Version: 6.1.0.0.alpha0+
Build ID: dd4f1b1bd31daf080dc0420524712dc244e539b5
CPU threads: 4; OS: Windows 6.3; UI render: default; 
TinderBox: Win-x86@42, Branch:master, Time: 2018-03-20_23:26:38
Locale: nl-NL (nl_NL); Calc: CL

and in
Version: 6.0.0.0.alpha1+
Build ID: dae6ba564fcf20299b7a560aeb346efc84364d41
CPU threads: 4; OS: Windows 6.3; UI render: GL; 
TinderBox: Win-x86@39, Branch:master, Time: 2017-11-01_00:28:17
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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