message: Fix login page breaking on wrong password
  Fixes
diff: @@ -83,6 +83,7 @@ module.exports = React.createClass({
  busy: false,
  errorText: null,
  loginIncorrect: false,
  + canTryLogin: true, // can we attempt to log in or are there validation errors?
  // used for preserving form values when changing homeserver
  username: "",
  @@ -135,13 +136,9 @@ module.exports = React.createClass({
  return this.state.busy || this.props.busy;
  },
  - hasError: function() {
  - return this.state.errorText;
  - },
  -
  onPasswordLogin: function(username, phoneCountry, phoneNumber, password) {
  // Prevent people from submitting their password when something isn't right.
  - if (this.isBusy() || this.hasError()) return;
  + if (this.isBusy() || !this.state.canTryLogin) return;
  this.setState({
  busy: true,
  @@ -236,6 +233,7 @@ module.exports = React.createClass({
  username: username,
  busy: doWellknownLookup, // unset later by the result of onServerConfigChange
  errorText: null,
  + canTryLogin: true,
  });
  if (doWellknownLookup) {
  const serverName = username.split(':').slice(1).join(':');
  @@ -249,7 +247,7 @@ module.exports = React.createClass({
  if (e.translatedMessage) {
  message = e.translatedMessage;
  }
  - this.setState({errorText: message, busy: false});
  + this.setState({errorText: message, busy: false, canTryLogin: false});
  }
  }
  },
  @@ -265,14 +263,16 @@ module.exports = React.createClass({
  },
  onPhoneNumberBlur: function(phoneNumber) {
  - this.setState({
  - errorText: null,
  - });
  -
  // Validate the phone number entered
  if (!PHONE_NUMBER_REGEX.test(phoneNumber)) {
  this.setState({
  errorText: _t('The phone number entered looks invalid'),
  + canTryLogin: false,
  + });
  + } else {
  + this.setState({
  + errorText: null,
  + canTryLogin: true,
  });
  }
  },
  @@ -343,6 +343,7 @@ module.exports = React.createClass({
  self.setState({
  errorText: self._errorTextFromError(err),
  loginIncorrect: false,
  + canTryLogin: false,
  });
  }).finally(function() {
  self.setState({
  