I don't know if this is an issue with React or IE11 but when an the input initially contains an EN-dash (8211) it fires the change event. 
JSFiddle http://jsfiddle.net/uH539/10/

var ReactDOMComponentFlags = require('ReactDOMComponentFlags');
var ReactDOMComponentTree = require('ReactDOMComponentTree');
var ReactDOMInput = require('ReactDOMInput');
var ReactDOMOption = require('ReactDOMOption');
var ReactDOMSelect = require('ReactDOMSelect');
var ReactDOMTextarea = require('ReactDOMTextarea');
var ReactMultiChild = require('ReactMultiChild');
var ReactPerf = require('ReactPerf');
var escapeTextContentForBrowser = require('escapeTextContentForBrowser');
var invariant = require('invariant');
var isEventSupported = require('isEventSupported');
var keyOf = require('keyOf');
var shallowEqual = require('shallowEqual');
var validateDOMNesting = require('validateDOMNesting');
var warning = require('warning');
var Flags = ReactDOMComponentFlags;
var deleteListener = EventPluginHub.deleteListener;
var getNode = ReactDOMComponentTree.getNodeFromInstance;
var listenTo = ReactBrowserEventEmitter.listenTo;
var registrationNameModules = EventPluginRegistry.registrationNameModules;
var CONTENT_TYPES = {'string': true, 'number': true};
var STYLE = keyOf({style: null});
var HTML = keyOf({__html: null});
var RESERVED_PROPS = {
  children: null,
  dangerouslySetInnerHTML: null,
  suppressContentEditableWarning: null,
};
var DOC_FRAGMENT_TYPE = 11;
function getDeclarationErrorAddendum(internalInstance) {