What version are you running?
reviewboard 2.5.7
What's the URL of the page containing the problem?
https://reviewboard.athoc.com/r/20/diff/1/#index_header
What steps will reproduce the problem?

Click on diff










What is the expected output? What do you see instead?
svn diff should come up
What operating system are you using? What browser?
ubuntu 16.=
Please provide any additional information below.
Unable to update new review request from commit ID 121984: Invalid utf8 character string: '9E47C6'

Traceback (most recent call last):

  File "/usr/local/lib/python2.7/dist-packages/ReviewBoard-2.5.7-py2.7.egg/reviewboard/reviews/managers.py", line 157, in create

    draft.update_from_commit_id(commit_id)

  File "/usr/local/lib/python2.7/dist-packages/ReviewBoard-2.5.7-py2.7.egg/reviewboard/reviews/models/base_review_request_details.py", line 221, in update_from_commit_id

    self.update_from_committed_change(commit_id)

  File "/usr/local/lib/python2.7/dist-packages/ReviewBoard-2.5.7-py2.7.egg/reviewboard/reviews/models/base_review_request_details.py", line 284, in update_from_committed_change

    base_commit_id=commit.parent)

  File "/usr/local/lib/python2.7/dist-packages/ReviewBoard-2.5.7-py2.7.egg/reviewboard/diffviewer/managers.py", line 545, in create_from_data

    status=status)

  File "/usr/local/lib/python2.7/dist-packages/Django-1.6.11-py2.7.egg/django/db/models/base.py", line 413, in init

    setattr(self, prop, kwargs.pop(prop))

  File "/usr/local/lib/python2.7/dist-packages/ReviewBoard-2.5.7-py2.7.egg/reviewboard/diffviewer/models.py", line 225, in _set_diff

    RawFileDiffData.objects.get_or_create_from_data(diff)

  File "/usr/local/lib/python2.7/dist-packages/ReviewBoard-2.5.7-py2.7.egg/reviewboard/diffviewer/managers.py", line 360, in get_or_create_from_data

    'compression': compression,

  File "/usr/local/lib/python2.7/dist-packages/Django-1.6.11-py2.7.egg/django/db/models/manager.py", line 154, in get_or_create

    return self.get_queryset().get_or_create(kwargs)

  File "/usr/local/lib/python2.7/dist-packages/Django-1.6.11-py2.7.egg/django/db/models/query.py", line 383, in get_or_create

    obj.save(force_insert=True, using=self.db)

  File "/usr/local/lib/python2.7/dist-packages/Django-1.6.11-py2.7.egg/django/db/models/base.py", line 545, in save

    force_update=force_update, update_fields=update_fields)

  File "/usr/local/lib/python2.7/dist-packages/Django-1.6.11-py2.7.egg/django/db/models/base.py", line 573, in save_base

    updated = self._save_table(raw, cls, force_insert, force_update, using, update_fields)

  File "/usr/local/lib/python2.7/dist-packages/Django-1.6.11-py2.7.egg/django/db/models/base.py", line 654, in _save_table

    result = self._do_insert(cls._base_manager, using, fields, update_pk, raw)

  File "/usr/local/lib/python2.7/dist-packages/Django-1.6.11-py2.7.egg/django/db/models/base.py", line 687, in _do_insert

    using=using, raw=raw)

  File "/usr/local/lib/python2.7/dist-packages/Django-1.6.11-py2.7.egg/django/db/models/manager.py", line 232, in _insert

    return insert_query(self.model, objs, fields, kwargs)

  File "/usr/local/lib/python2.7/dist-packages/Django-1.6.11-py2.7.egg/django/db/models/query.py", line 1514, in insert_query

    return query.get_compiler(using=using).execute_sql(return_id)

  File "/usr/local/lib/python2.7/dist-packages/Django-1.6.11-py2.7.egg/django/db/models/sql/compiler.py", line 903, in execute_sql

    cursor.execute(sql, params)

  File "/usr/local/lib/python2.7/dist-packages/Djblets-0.9.4-py2.7.egg/djblets/log/middleware.py", line 32, in execute

    return self.cursor.execute(sql, params)

  File "/usr/local/lib/python2.7/dist-packages/Django-1.6.11-py2.7.egg/django/db/backends/mysql/base.py", line 124, in execute

    return self.cursor.execute(query, args)

  File "/usr/local/lib/python2.7/dist-packages/MySQL_python-1.2.5-py2.7-linux-x86_64.egg/MySQLdb/cursors.py", line 207, in execute

    if not self._defer_warnings: self._warning_check()

  File "/usr/local/lib/python2.7/dist-packages/MySQL_python-1.2.5-py2.7-linux-x86_64.egg/MySQLdb/cursors.py", line 117, in _warning_check

    warn(w[-1], self.Warning, 3)

Warning: Invalid utf8 character string: '9E47C6'