buf_file: Skip and delete broken file chunks during resume. fix #1760#1874

Merged

repeatedly merged 2 commits intomasterfrom ignore-broken-file-chunks

Mar 2, 2018

+156-3

Commits on Feb 28, 2018

buf_file: Skip and delete broken files during resume. fix #1760
repeatedly
committed

Commits on Mar 2, 2018

buf_file: Add test for broken files
repeatedly
committed