Vaadin: 8.0.4. Setting gridHeightMode(HeidhtMode.Undefined) results in displaying wrong amount of rows

[anasmi]

Setting grid to grid.setHeightMode(HeightMode.UNDEFINED); resuts in wrong amount of rows to be displayed.

Code to reproduce:
final VerticalLayout layout = new VerticalLayout();
List people = Arrays.asList(new Person("Nicolaus Copernicus", 1543),
new Person("Galileo Galilei", 1564), new Person("Johannes Kepler1", 1571),
new Person("Johannes Kepler2", 1571), new Person("Johannes Kepler3", 1571));

	// Create a grid bound to the list
	Grid<Person> grid = new Grid<>();
	grid.setItems(people);
	grid.addColumn(Person::getName).setCaption("Name");
	grid.addColumn(Person::getBirthYear).setCaption("Year of birth");
	grid.setHeightMode(HeightMode.UNDEFINED);
	grid.setWidth("900px");
	layout.addComponent(grid);
	setContent(layout);

[anasmi]

[tsuoanttila]

There was a fix for this in pull request #9104 merged to master yesterday. Will be picked to 8.0 and one part of the patch might apply for 7.7 as well.