Steps to reproduce:

1. Create a Matrix Job (A) that archives a set of files
2. Create a "simple" Job (B) that uses the "Copy Artifact Plugin" to copy Artifacts from the "last successful build"
3. Do a regular build of (A). Now all configurations have the files properly archived
4. Use the "Matrix Retrigger" Plugin to rebuild only a subset (e.g., the failed builds or none)
5. Build (B) again

Result: Only the artifacts from the retriggered configurations are being copied. In the case that no configuration were selected in the "matrix-reloaded" plugin, no artifacts will be copied.

Idea how to fix this: Always copy the archived artifacts of not-retriggered configurations to the new build.