Track the main version through sequence movement

internal/engine/load.go

@@ -229,6 +229,8 @@ func executeLoadRequest[T any](request loadRequest[T], secrets SecretBinding, lo
 		}
 	}
 	if request.ordinary {
+		versionState.locateMainVersion(input.document)
+		mainOptions.Definition.Version = versionState.effectiveRule
 		input, diagnostics = applyInputLayers(request.main.source, mainOptions, input)
 	} else {
 		input, diagnostics = assembleLayeredInput(request, input, accounting)
@@ -239,6 +241,7 @@ func executeLoadRequest[T any](request loadRequest[T], secrets SecretBinding, lo
 	if hasErrors(diagnostics) {
 		return nil, accumulator.loadError()
 	}
+	request.effectiveVersion = versionState.effectiveRule
 	if request.ordinary && input.parsed.source != nil {
 		baseSources := make([]SourceInfo, 0, len(input.sources))
 		for _, source := range input.sources {
@@ -268,10 +271,13 @@ func executeLoadRequest[T any](request loadRequest[T], secrets SecretBinding, lo
 			accumulator.add(problems...)
 			return nil, accumulator.loadError()
 		}
-		if problem := inheritanceVersionDiagnostic(request.protectionVersion(), expanded); problem != nil {
+		effectiveVersion, problem := projectInheritanceVersion(request.protectionVersion(), expanded)
+		if problem != nil {
 			accumulator.add(*problem)
 			return nil, accumulator.loadError()
 		}
+		request.effectiveVersion = effectiveVersion
+		versionState.effectiveRule = effectiveVersion
 		input.composition = composition
 		input.inheritance = expanded
 		input.document = expanded.root