Hello,
I believe I found a bug in how Git represents a diff when invoked with
"--find-copies-harder" parameter.
Specifically, the unified diff header of a hunk contains an extra
piece of text which appears to be a line from the context (i.e.
unchanged line), something like this:
> git diff --find-copies-harder d00ca3f 20fb313
diff --git a/test.txt b/copy.txt
similarity index 81%
copy from test.txt
copy to copy.txt
index 734156d..43a3f9d 100644
--- a/test.txt
+++ b/copy.txt
@@ -2,6 +2,7 @@ line 1
line 2
line 3
line 4
+added line
line 5
line 6
line 7
Note "line 1" after the standard unified diff header.
I prepared a sample repository with a minimal file I can reproduce
this problem with:
https://bitbucket.org/dpenkin/find-copies-harder-bug
I'm running Git 2.18.0 on a macOS, but I also tried with Git 2.15.0
and 2.8.6 running on Alpine Linux and was able to reproduce the same
problem.
Please advise whether this is expected output or is indeed a bug.
Thank you.
Kind regards,
Daniil Penkin
