Enhance fetch integration tests with sha1
Enhance fetch integration tests with sha1

Adding an integration test case to check that only
needed objects are fetched.

Signed-off-by: Olivier Monnier <9e6708ec2286bf322270703c3b70af6b7903c73f@intel.com>

andyneff/git-lfs,larsxschneider/git-lfs,github/git-lfs,bozaro/git-lfs,larsxschneider/git-lfs,github/git-lfs,github/git-lfs,aleb/git-lfs,Jericho25/-git-lfs_miilkyway,andyneff/git-lfs,bozaro/git-lfs,dakotahawkins/git-lfs,Jericho25/-git-lfs_miilkyway,dakotahawkins/git-lfs,dakotahawkins/git-lfs,aleb/git-lfs,andyneff/git-lfs,Jericho25/-git-lfs_miilkyway,aleb/git-lfs,larsxschneider/git-lfs,bozaro/git-lfs