- if src and dest have same source path (or are both "/"), then mergeop can be used directly
- even when a copy is needed, we can still use mergeop the same way
COPY --link does in dockerfiles (can expand if needed)
Similar optimizations can be made for other APIs that internally do copies
COPY --linkdoes in dockerfiles (can expand if needed)Similar optimizations can be made for other APIs that internally do copies