Merge branch 'jt/partial-clone-fsck-connectivity'

Partial clone support of "git clone" has been updated to correctly
validate the objects it receives from the other side.  The server
side has been corrected to send objects that are directly
requested, even if they may match the filtering criteria (e.g. when
doing a "lazy blob" partial clone).

* jt/partial-clone-fsck-connectivity:
clone: check connectivity even if clone is partial
upload-pack: send refs' objects despite "filter"

diff --cc builtin/clone.c
Simple merge

diff --cc list-objects.c
Simple merge

diff --cc object.h
Simple merge

diff --cc revision.c
Simple merge

diff --cc revision.h
Simple merge