Do not update newly created model properties
There is no real reason to favor old behavior over the current, plus
the new behavior saves an extra disk write (which are expensive).
Patch by: Sverre Rabbelier
README.txt
coverage.py
setup.py
coverage.egg-info/SOURCES.txt
coverage.egg-info/dependency_links.txt
coverage.egg-info/entry_points.txt
coverage.egg-info/top_level.txt