Re: [PATCH] t2080: fix cp invocation to copy symlinks instead of following them

>
> t2080 makes a few copies of a test repository and later performs a
> branch switch on each one of the copies to verify that parallel checkout
> and sequential checkout produce the same results. However, the
> repository is copied with `cp -R` which, on some systems, defaults to
> following symlinks on the directory hierarchy and copying their target
> files instead of copying the symlinks themselves. AIX is one example of
> system where this happens. Because the symlinks are not preserved, the
> copied repositories have paths that do not match what is in the index,
> causing git to abort the checkout operation that we want to test. This

> makes the test fail on these systems.
>
> Fix this by copying the repository with the POSIX flag '-P', which
> forces cp to copy the symlinks instead of following them. Note that we
> already use this flag for other cp invocations in our test suite (see
> t7001).