message: fix(lib-client): fix when drag tile has one only child which is a branch tile
diff: @@ -225,7 +225,7 @@ export class DragTileService {
  isDropAllowedIfTileHasBranch(dragTileId, dropPositionInRow) {
  const dragTileChildren = this.nodes[dragTileId].children;
  - if (dragTileChildren.length > 1) {
  + if (dragTileChildren.length) {
  const branchPaths = this.getAllBranchPaths(dragTileId);
  const maxPathLength = branchPaths.reduce((maxLength, path) => {
  const pathLength = path.length;
  @@ -259,7 +259,6 @@ export class DragTileService {
  const tilePaths = this.getTilePaths(tileId);
  tilePaths.forEach(path => this.updateTilesInPathDropStatus(tileId, path));
  }
  - return;
  }
  getTilePaths(tileId) {
  