Describe the bug

crane export in 0.21.3 drops symlinks while export to tar.

No problem at least with 0.21.1.

This looks similar to #2238,
but the scope there is defined as flatten with absolute symlinks, and there is a PR for exactly that case, so I decided to make separate issue.

To Reproduce

I did something like this:

Old crane:

> crane-old version
0.21.1
> crane-old export --insecure IMAGE | tar -tvf - app/node_modules/.bin
drwxr-xr-x 0/0               0 2026-03-23 19:38 app/node_modules/.bin
lrwxrwxrwx 0/0               0 2026-03-23 19:38 app/node_modules/.bin/acorn -> ../acorn/bin/acorn
# long list of symlinks follows

New crane, on same image, same environment:

> crane-new version
0.21.3
> crane-new export --insecure IMAGE | tar -tvf - app/node_modules/.bin
drwxr-xr-x 0/0               0 2026-03-23 19:38 app/node_modules/.bin
# above is full output for this case

Expected behavior

Symlinks must be in place.

Additional context

My environment is semi-closed, so I can't give examples which are publicly accessible, but I believe it is easy to reproduce.