message: Fix issue where the cursor is put at the start of selected history item
  Leading to strange behaviour when selecting all and deleting it.
  Fixes
diff: @@ -568,6 +568,14 @@ export default class MessageComposerInput extends React.Component {
  'insert-characters',
  );
  + // Move selection to the end of the selected history
  + let newSelection = SelectionState.createEmpty(newContent.getLastBlock().getKey());
  + newSelection = newSelection.merge({
  + focusOffset: newContent.getLastBlock().getLength(),
  + anchorOffset: newContent.getLastBlock().getLength(),
  + });
  + editorState = EditorState.forceSelection(editorState, newSelection);
  +
  this.setState({editorState});
  return true;
  }
  