kmx git

tests/resources/blametest.git/objects/a8/ba8436b5d8ccbdfd5be597c194e7bb8e0a092f

Author	Commit	Date	CI	Message
	62d59467	2020-03-08T02:13:11		Fix segfault when calling git_blame_buffer() This change makes sure that the hunk is not null before trying to dereference it. This avoids segfaults, especially when blaming against a modified buffer (i.e. the index). Fixes: #5443