Fixes #19230: Allow label reuse when creating multiple components from a pattern #19261
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Fixes: #19230
If a pattern-supporting field returns only a single value because no pattern was specified, replicate it to provide a match the number of expected values. This allows us to do e.g.
Port[1-4]
Foo
to reuse the same label for all components. However, an otherwise mismatched number of labels (as below) will still fail:
Port[1-4]
Foo[1-2]