Flutter: Support for setting max height on multiline text inputs

[mpcomplete]

Multiline text inputs will expand infinitely as more text is entered. The client should be able to specify a max number of rows (and possible a minimum?), and text should scroll vertically.

[QoLTech]

Setting maxLines allows as many lines up to that number, but it also initially starts with that many rows. So, setting maxLines to 5 starts with 5 lines, instead of 1. Is this intended and how can I work around this?