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We are preparing to integrate the path-walk API with some --filter options in 'git pack-objects', but there is a subtle issue that is revealed when those are put together and the test suite is run with GIT_TEST_PACK_PATH_WALK=1. When a filter reduces the set of requested objects, this results in filtering out directly-requested objects, such as in the download of needed blobs in a blobless partial clone. The root cause is that the scan of pending objects in the path-walk API respects the filters set in the path_walk_info instead of overriding them for pending objects. We can tell that a path is part of the directly-referenced objects if its path name starts with '/' (other paths, including root trees never have this starting character). Create a path_is_for_direct_objects() to make this meaning clear, especially as we add more references in the future as we integrate the path-walk API with partial clone filter options. Signed-off-by: Derrick Stolee <stolee@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>