forked from amazingfate/loongoffice
The problem was that SwTxtFmtColl::IsAssignedToListLevelOfOutlineStyle() returned true, because the style name started with "header". However, there were no real assignment, so SwTxtFmtColl::GetAssignedOutlineStyleLevel() returned -1 later, which resulted in a (valid) assertion failure. Fix this by handling -1 outline level as not assigned. Change-Id: I522f75002cf064ce7bc4da949683ac4e5ff4ec72