If there is an overflow, we must scroll.
However, when starting to drag a button in order to move it, scrolling does not work.
没有设置依赖项。
该备注对被屏蔽的用户不可见。
删除分支是永久的。虽然已删除的分支在实际被删除前有可能会短时间存在，但这在大多数情况下无法撤销。是否继续？
If there is an overflow, we must scroll.
However, when starting to drag a button in order to move it, scrolling does not work.