kivy/kivy — pull request #1866 by matham (2014-02-07 07:02:37+00:00)
Title: Fix scrolling on empty scrollview.

This fixes https://github.com/kivy/kivy/issues/1852.

The issue was with scrolling on a empty scrollview. This code reproduced the issue:

from kivy.app import runTouchApp
from kivy.lang import Builder
kv = """
ScrollView
"""
if __name__ == '__main__':
runTouchApp(Builder.load_string(kv))

Which would crash before this pr.