resolve copy failure for artifact with multiple accessories (#17123)
resolve copy failure for artifact with multiple accessories (#17123)

If the artifact has more than one signaure, it will currently copy the last one. After the fix, all accessories can be copied to the target project.

Signed-off-by: wang yan <63b20dea16c07a874bc9bf767df5575676113cb6@vmware.com>
wy65701436/harbor,wy65701436/harbor,wy65701436/harbor,wy65701436/harbor,wy65701436/harbor,wy65701436/harbor