Merge branch 'en/rename-directory-detection-reboot'

Rename detection logic in "diff" family that is used in "merge" has
learned to guess when all of x/a, x/b and x/c have moved to z/a,
z/b and z/c, it is likely that x/d added in the meantime would also
want to move to z/d by taking the hint that the entire directory
'x' moved to 'z'.  A bug causing dirty files involved in a rename
to be overwritten during merge has also been fixed as part of this
work.  Incidentally, this also avoids updating a file in the
working tree after a (non-trivial) merge whose result matches what
our side originally had.

* en/rename-directory-detection-reboot: (36 commits)
  merge-recursive: fix check for skipability of working tree updates
  merge-recursive: make "Auto-merging" comment show for other merges
  merge-recursive: fix remainder of was_dirty() to use original index
  merge-recursive: fix was_tracked() to quit lying with some renamed paths
  t6046: testcases checking whether updates can be skipped in a merge
  merge-recursive: avoid triggering add_cacheinfo error with dirty mod
  merge-recursive: move more is_dirty handling to merge_content
  merge-recursive: improve add_cacheinfo error handling
  merge-recursive: avoid spurious rename/rename conflict from dir renames
  directory rename detection: new testcases showcasing a pair of bugs
  merge-recursive: fix remaining directory rename + dirty overwrite cases
  merge-recursive: fix overwriting dirty files involved in renames
  merge-recursive: avoid clobbering untracked files with directory renames
  merge-recursive: apply necessary modifications for directory renames
  merge-recursive: when comparing files, don't include trees
  merge-recursive: check for file level conflicts then get new name
  merge-recursive: add computation of collisions due to dir rename & merging
  merge-recursive: check for directory level conflicts
  merge-recursive: add get_directory_renames()
  merge-recursive: make a helper function for cleanup for handle_renames
  ...

1 files changed, 1 insertions, 1 deletions

diff --git a/t/t6022-merge-rename.sh b/t/t6022-merge-rename.sh
index 48747e7..b760c22 100755
--- a/t/t6022-merge-rename.sh
+++ b/t/t6022-merge-rename.sh
@@ -247,7 +247,7 @@ test_expect_success 'merge of identical changes in a renamed file' '
 	git reset --hard HEAD^ &&
 	git checkout change &&
 	GIT_MERGE_VERBOSITY=3 git merge change+rename >out &&
-	test_i18ngrep "^Skipped B" out
+	test_i18ngrep ! "^Skipped B" out
 '
 
 test_expect_success 'setup for rename + d/f conflicts' '