GH-200 - Consume and troubleshoot workflows - Section 2.3
Interpret matrix expansions and merged YAML anchors and aliases when analysing a workflow, and selectively re-run individual matrix jobs.
Trace the expanded job set produced by a matrix strategy and resolve YAML anchors, aliases, and merge keys to determine a workflow's final structure. Selectively re-run a single failing matrix job without rerunning every combination.
matrix expansionYAML anchorsre-run matrix jobmerge keys
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