ViewHolderCollection.render 在渲染栈超出了布局表时会抛出"索引越界,布局不足"的异常

ViewHolderCollection can throw index out of bounds, not enough layouts while rendering, taking down the tree. It happens when the render stack (RenderStackManager.keyMap) still holds an entry whose index was removed from the layout table (LayoutManager.layouts): the render path reads layouts through an unguarded getLayout(index), which throws instead of returning undefined.

Same error and same getLayout family as #2291, different call site — that one is the validateItemSize measurement callback, this one is the render path.