COPY is bombing on dangling symlinks

[ewah]

Actual behavior

building a simple dockerfile

FROM alpine:latest

COPY a /a

make the a directory and dangling symlink

mkdir -p /workspace/a
ln -s abc /workspace/a/dangling_link

call build

# /kaniko/executor --dockerfile=./Dockerfile --destination=mydockerhub/ed/ed-test:200408-a
INFO[0000] Resolved base name alpine:latest to alpine:latest
INFO[0000] Resolved base name alpine:latest to alpine:latest
INFO[0000] Retrieving image manifest alpine:latest
INFO[0001] Retrieving image manifest alpine:latest
INFO[0001] Built cross stage deps: map[]
INFO[0001] Retrieving image manifest alpine:latest
INFO[0001] Retrieving image manifest alpine:latest
INFO[0001] Unpacking rootfs as cmd COPY a /a requires it.
INFO[0001] Taking snapshot of full filesystem...
INFO[0003] Resolving paths
INFO[0003] COPY a /a
error building image: error building stage: failed to execute command: lstat /workspace/a/abc: no such file or directory

errors trying to resolve symlink instead of creating dangling symlink.

Expected behavior
/a/dangling_link be be a symlink to /a/abc

To Reproduce
see actual

Additional Information

• Dockerfile
  above
• Build Context
  empty except for ln -s being called
• Kaniko Image (fully qualified with digest)
  gcr.io/kaniko-project/executor:debug-v0.18.0
  sha256:0b8f9aba6c282e92c26db474d0970cef156d8952ee21ea230cc16ea1bf7969eb

Triage Notes for the Maintainers

Description	Yes/No
Please check if this a new feature you are proposing
Please check if the build works in docker but not in kaniko	- [ X ]
Please check if this error is seen when you use --cache flag
Please check if your dockerfile is a multistage dockerfile

[ewah]

i am a dupe #1111