Squashed 'tests/files/' changes from d6fe94a..3ebf646

3ebf646 Merge remote-tracking branch 'origin/develop' into develop
0ecbe27 uncle with same block number as current block

git-subtree-dir: tests/files
git-subtree-split: 3ebf64619911a7cbdec3b70491284c4cd5f4c3a3