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- Gitea version (or commit ref):
- Git version:
- Operating system:
- Database (use `[x]`):
  - [ ] PostgreSQL
  - [ ] MySQL
  - [ ] MSSQL
  - [ ] SQLite
- Can you reproduce the bug at https://try.gitea.io:
  - [ ] Yes (provide example URL)
  - [ ] No
  - [ ] Not relevant
- Log gist:

## Description

...


## Screenshots

**If this issue involves the Web Interface, please include a screenshot**
lue='1.0-stable'>1.0-stable</option>
<option value='1.1-stable'>1.1-stable</option>
<option value='1.2-stable'>1.2-stable</option>
<option value='1.3-stable'>1.3-stable</option>
<option value='1.4-stable'>1.4-stable</option>
<option value='2.0-stable'>2.0-stable</option>
<option value='2.1-stable'>2.1-stable</option>
<option value='2.2-stable'>2.2-stable</option>
<option value='2.3-stable'>2.3-stable</option>
<option value='2.4-stable'>2.4-stable</option>
<option value='2.5-stable'>2.5-stable</option>
<option value='2.6-stable'>2.6-stable</option>
<option value='3.0-stable'>3.0-stable</option>
<option value='3.1-stable'>3.1-stable</option>
<option value='3.2-stable'>3.2-stable</option>
<option value='3.3-stable'>3.3-stable</option>
<option value='3.4-stable'>3.4-stable</option>
<option value='4.0-stable'>4.0-stable</option>
<option value='4.1-stable'>4.1-stable</option>
<option value='4.2-stable'>4.2-stable</option>
<option value='5.0-stable'>5.0-stable</option>
<option value='5.1-stable' selected='selected'>5.1-stable</option>
<option value='6.0-stable'>6.0-stable</option>
<option value='integration-to-svn-stable-1.0'>integration-to-svn-stable-1.0</option>
<option value='integration-to-svn-trunk'>integration-to-svn-trunk</option>
<option value='master'>master</option>
<option value='nbc'>nbc</option>
<option value='plugin-hooks'>plugin-hooks</option>
<option value='swistak'>swistak</option>
<option value='work'>work</option>
</select> <input type='submit' value='switch'/></form></td></tr>
<tr><td class='sub'>Mirror of redmine code source: https://github.com/redmine/redmine</td><td class='sub right'>www-data</td></tr></table>
<table class='tabs'><tr><td>
<a href='/redmine.git/?h=5.1-stable'>summary</a><a href='/redmine.git/refs/?h=5.1-stable&amp;id=0d5fca9ba5ac81db46211b6cc06686e59c57beb4'>refs</a><a href='/redmine.git/log/app/models/change.rb?h=5.1-stable'>log</a><a class='active' href='/redmine.git/tree/app/models/change.rb?h=5.1-stable&amp;id=0d5fca9ba5ac81db46211b6cc06686e59c57beb4'>tree</a><a href='/redmine.git/commit/app/models/change.rb?h=5.1-stable&amp;id=0d5fca9ba5ac81db46211b6cc06686e59c57beb4'>commit</a><a href='/redmine.git/diff/app/models/change.rb?h=5.1-stable&amp;id=0d5fca9ba5ac81db46211b6cc06686e59c57beb4'>diff</a><a href='/redmine.git/stats/app/models/change.rb?h=5.1-stable'>stats</a></td><td class='form'><form class='right' method='get' action='/redmine.git/log/app/models/change.rb'>
<input type='hidden' name='h' value='5.1-stable'/><input type='hidden' name='id' value='0d5fca9ba5ac81db46211b6cc06686e59c57beb4'/><select name='qt'>
<option value='grep'>log msg</option>
<option value='author'>author</option>
<option value='committer'>committer</option>
<option value='range'>range</option>
</select>
<input class='txt' type='search' size='10' name='q' value=''/>
<input type='submit' value='search'/>
</form>
</td></tr></table>
<div class='path'>path: <a href='/redmine.git/tree/?h=5.1-stable&amp;id=0d5fca9ba5ac81db46211b6cc06686e59c57beb4'>root</a>/<a href='/redmine.git/tree/app?h=5.1-stable&amp;id=0d5fca9ba5ac81db46211b6cc06686e59c57beb4'>app</a>/<a href='/redmine.git/tree/app/models?h=5.1-stable&amp;id=0d5fca9ba5ac81db46211b6cc06686e59c57beb4'>models</a>/<a href='/redmine.git/tree/app/models/change.rb?h=5.1-stable&amp;id=0d5fca9ba5ac81db46211b6cc06686e59c57beb4'>change.rb</a></div><div class='content'>blob: e5c1585b4c962556dcf38db50600a15de5361f06 (<a href='/redmine.git/plain/app/models/change.rb?h=5.1-stable&amp;id=0d5fca9ba5ac81db46211b6cc06686e59c57beb4'>plain</a>)
<table summary='blob content' class='blob'>
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</pre></td>
<td class='lines'><pre><code>