fix: unifiedOverlays should be assigned if no conflicts found.

[NO TESTS NEEDED]

Signed-off-by: flouthoc <[email protected]>

pkg/specgen/generate/storage.go

@@ -117,7 +117,7 @@ func finalizeMounts(ctx context.Context, s *specgen.SpecGenerator, rt *libpod.Ru
 			return nil, nil, nil, err
 		}
 		cleanDestination := filepath.Clean(v.Destination)
-		if _, ok := unifiedOverlays[cleanDestination]; ok {
+		if _, ok := unifiedOverlays[cleanDestination]; !ok {
 			unifiedOverlays[cleanDestination] = v
 		}
 	}