message: Fix expanding last collapsed sticky session when zoomed in
diff: @@ -454,8 +454,9 @@ export default class RoomSublist extends React.Component<IProps, IState> {
  const sublist = possibleSticky.parentElement.parentElement;
  const list = sublist.parentElement.parentElement;
  // the scrollTop is capped at the height of the header in LeftPanel, the top header is always sticky
  - const isAtTop = list.scrollTop <= HEADER_HEIGHT;
  - const isAtBottom = list.scrollTop >= list.scrollHeight - list.offsetHeight;
  + const listScrollTop = Math.round(list.scrollTop);
  + const isAtTop = listScrollTop <= Math.round(HEADER_HEIGHT);
  + const isAtBottom = listScrollTop >= Math.round(list.scrollHeight - list.offsetHeight);
  const isStickyTop = possibleSticky.classList.contains('mx_RoomSublist_headerContainer_stickyTop');
  const isStickyBottom = possibleSticky.classList.contains('mx_RoomSublist_headerContainer_stickyBottom');
  