0.12.7dev: fixed rare failure in `WikiPageTestCase.test_update_page`


git-svn-id: http://trac.edgewall.org/intertrac/log:/branches/0.12-stable@13268 af82e41b-90c4-0310-8c96-b1721e28e2e2
1.0.3dev: merged [13268] from 0.12-stable (fix for `WikiPageTestCase.test_update_page`)


git-svn-id: http://trac.edgewall.org/intertrac/log:/branches/1.0-stable@13269 af82e41b-90c4-0310-8c96-b1721e28e2e2