Close callback contexts when callbacks panic

internal/engine/validation.go

@@ -102,8 +102,10 @@ func runValidation[T any](configuration *T, validator func(*T, *Validation), sch
 		invalidPath: CodeValidateInvalidPath, schema: schema, document: input,
 	}
 	context := &Validation{state: state}
-	validator(configuration, context)
-	state.active = false
+	func() {
+		defer func() { state.active = false }()
+		validator(configuration, context)
+	}()
 	after, issue := projectConfiguration(schema, reflect.ValueOf(*configuration), defaultProjectionLimits())
 	if issue != nil {
 		state.diagnostics = append(state.diagnostics, validationMutationDiagnostic(issue.path))
@@ -253,8 +255,11 @@ func reportVersion(rule *VersionRule, version Version, root *document.Node) []Di
 		invalidPath: CodeVersionError, document: root,
 	}
 	validation := &Validation{state: state}
-	err := rule.Check(version, validation)
-	state.active = false
+	var err error
+	func() {
+		defer func() { state.active = false }()
+		err = rule.Check(version, validation)
+	}()
 	if err != nil && !hasErrors(state.diagnostics) {
 		location, _ := nearestDocumentLocation(root, rule.Path)
 		state.diagnostics = append(state.diagnostics, Diagnostic{