message: Prevent state to be toggled whilst a request is pending
diff: @@ -886,6 +886,7 @@ export default class InviteDialog extends React.PureComponent<IInviteDialogProps
  };
  _toggleMember = (member: Member) => {
  + if (!this.state.busy) {
  let filterText = this.state.filterText;
  const targets = this.state.targets.map(t => t); // cheap clone for mutation
  const idx = targets.indexOf(member);
  @@ -900,6 +901,7 @@ export default class InviteDialog extends React.PureComponent<IInviteDialogProps
  if (this._editorRef && this._editorRef.current) {
  this._editorRef.current.focus();
  }
  + }
  };
  _removeMember = (member: Member) => {
  