If a text block's 'start point for text' is set to any of the bottom ones (bottom-left, bottom-right, bottom-middle), why is it that when I modify the block (I write 3 more lines in the block), the whole block extends downwards against the start point? Shouldn't it extend upwards, because of the bottom start point?

If I misunderstand the function, please explain it to me, but if the text block is not working properly, please fix it.