generic.dockerfile.correctness.copy-from-own-alias.copy-from-own-alias matches even after switching images

[malexmave]

Describe the bug The rule generic.dockerfile.correctness.copy-from-own-alias.copy-from-own-alias matches the following code:

FROM gradle:jdk11 as cache
RUN stuff

FROM other:1.0 as builder
COPY --from=cache /cache /home/gradle/.gradle

FROM image:3 as deploy
RUN stuff

Reproduce in playground

Expected behavior It should not match, because the described error (copying by alias from the currently active image) is not present. Again, I tried to fix it but could not make it work on short notice.

Priority How important is this to you?

• [ ] P0: blocking me from making progress
• [ ] P1: this will block me in the near future
• [x] P2: annoying but not blocking me

[minusworld]

Blocked on returntocorp/semgrep#4327

[stale[bot]]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[malexmave]

Bump to keep this open, as it is currently blocked on a different issue, but not necessarily stale.