fix: wrap IsExchangeable/IsExchangable in xsd:choice in fareConditionSummary

Author: Copilot

xsd/netex_part_3/part3_fares/netex_fareConditionSummary_version.xsd

@@ -224,16 +224,18 @@ Rail transport, Roads and Road transport
 					<xsd:documentation>Whether the ticket can be refunded.</xsd:documentation>
 				</xsd:annotation>
 			</xsd:element>
-			<xsd:element name="IsExchangeable" type="xsd:boolean" default="true" minOccurs="0">
-				<xsd:annotation>
-					<xsd:documentation>Whether the ticket can be exchanged. +v2.1</xsd:documentation>
-				</xsd:annotation>
-			</xsd:element>
-			<xsd:element name="IsExchangable" type="xsd:boolean" default="true" minOccurs="0">
-				<xsd:annotation>
-					<xsd:documentation>DEPRECATED - misspelt, use IsExchangeable instead. -v2.1</xsd:documentation>
-				</xsd:annotation>
-			</xsd:element>
+			<xsd:choice minOccurs="0">
+				<xsd:element name="IsExchangeable" type="xsd:boolean" default="true">
+					<xsd:annotation>
+						<xsd:documentation>Whether the ticket can be exchanged. +v2.1</xsd:documentation>
+					</xsd:annotation>
+				</xsd:element>
+				<xsd:element name="IsExchangable" type="xsd:boolean" default="true">
+					<xsd:annotation>
+						<xsd:documentation>DEPRECATED - misspelt, use IsExchangeable instead. -v2.1</xsd:documentation>
+					</xsd:annotation>
+				</xsd:element>
+			</xsd:choice>
 			<xsd:element name="HasExchangeFee" type="xsd:boolean" default="false" minOccurs="0">
 				<xsd:annotation>
 					<xsd:documentation>Whether there is a charge for exchanges.</xsd:documentation>