message: Prevent default for forgot password link
  The forgot password link should prevent default to avoid changing the URL's hash
  state.
diff: @@ -58,6 +58,7 @@ class PasswordLogin extends React.Component {
  loginType: PasswordLogin.LOGIN_FIELD_MXID,
  };
  + this.onForgotPasswordClick = this.onForgotPasswordClick.bind(this);
  this.onSubmitForm = this.onSubmitForm.bind(this);
  this.onUsernameChanged = this.onUsernameChanged.bind(this);
  this.onUsernameBlur = this.onUsernameBlur.bind(this);
  @@ -74,6 +75,12 @@ class PasswordLogin extends React.Component {
  this._loginField = null;
  }
  + onForgotPasswordClick(ev) {
  + ev.preventDefault();
  + ev.stopPropagation();
  + this.props.onForgotPasswordClick();
  + }
  +
  onSubmitForm(ev) {
  ev.preventDefault();
  @@ -244,7 +251,7 @@ class PasswordLogin extends React.Component {
  forgotPasswordJsx = <span>
  {_t('Not sure of your password? <a>Set a new one</a>', {}, {
  a: sub => <a className="mx_Login_forgot"
  - onClick={this.props.onForgotPasswordClick}
  + onClick={this.onForgotPasswordClick}
  href="#"
  >
  {sub}
  