youngoli commented on a change in pull request #14996:
URL: https://github.com/apache/beam/pull/14996#discussion_r651467016
##########
File path: sdks/go/pkg/beam/core/runtime/graphx/xlang.go
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@@ -29,6 +29,9 @@ func mergeExpandedWithPipeline(edges []*graph.MultiEdge, p
*pipepb.Pipeline) {
for _, e := range edges {
if e.Op == graph.External {
+ if e.External == nil {
Review comment:
Done, and I fixed up the nit too. I figured it was unlikely I'd remember
to get to it otherwise.
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