[Impex] &ref not working when updated in between

[bnussbau]

 <type name="Product" package="at.benjaminnussbaum.spotbudget.types.itemtypes.product">
        <properties>
            <property name="brand" type="String">
                <description></description>
            </property>
            <property name="name" type="String">
                <description></description>
            </property>
            <property name="fullName" type="String">
                <description></description>
            </property>
            <property name="productDescription" type="String">
                <description></description>
            </property>
            <property name="receiptText" type="String">
                <description></description>
            </property>
            <property name="category" type="String">
                <description></description>
            </property>
            <property name="pictureUrl" type="String">
                <description></description>
            </property>
            <property name="sparProductCode" type="String">
                <description></description>
            </property>
        </properties>
    </type>
<type name="Ean13Product" package="at.benjaminnussbaum.spotbudget.types.itemtypes.product" extends="EanProduct">
        <properties>
            <property name="ean13code" type="String" unique="true">
                <description>EAN / EAN-13 barcode</description>
            </property>
            <property name="variableEan" type="Boolean" default="false">
                <description></description>
            </property>
            <property name="variableEanDigits" type="Integer">
                <description></description>
            </property>
        </properties>
    </type>
<type name="PriceRow" package="at.benjaminnussbaum.spotbudget.types.itemtypes.product.price">
        <properties>
            <property name="amount" type="Double">
                <description></description>
            </property>
            <property name="date" type="LocalDateTime">
                <description>Tansaction date</description>
            </property>
            <property name="currency" type="Currency">
                <description>Transaction amount</description>
            </property>
            <property name="provider" type="PriceProviderType">
                <description></description>
            </property>
        </properties>
    </type>

    <relation name="Product2PriceRow">
        <source itemType="Product" mappedBy="product" cardinality="one">
            <description></description>
        </source>
        <target itemType="PriceRow" mappedBy="priceRows" cardinality="many">
            <description></description>
        </target>
    </relation>

INSERT_UPDATE Ean13Product; ean13code[unique = true]; receiptText                ; &ref
                          ; 9100000709444           ; SBUDGET KUECHENROLLE       ; 9100000709444

UPDATE Ean13Product; ean13code[unique = true]; receiptText           ; sparProductCode;
                   ; 9100000709444           ; SBUDGET KUECHENROLLE  ; 2020000926726

INSERT_UPDATE PriceRow; product(&ref)        ; amount;
                      ; 9100000709444       ; 2.19  ;

Caused by: org.springframework.transaction.TransactionUsageException: Error during transactional execution.; nested exception is io.spotnext.core.infrastructure.exception.ImpexImportException: Could not import item of type at.benjaminnussbaum.spotbudget.types.itemtypes.product.price.PriceRow (Found more than 1 result for the given search parameters). Line that caused this error: , 9100000709444, 2.19, 
	at io.spotnext.core.persistence.service.impl.DefaultTransactionService.execute(DefaultTransactionService.java:94)
	at io.spotnext.core.persistence.service.impl.DefaultTransactionService.executeWithoutResult(DefaultTransactionService.java:110)
	at io.spotnext.core.infrastructure.strategy.impl.DefaultImpexImportStrategy.importImpex(DefaultImpexImportStrategy.java:129)
	at io.spotnext.core.infrastructure.service.impl.DefaultImportService.importItems(DefaultImportService.java:39)
	at io.spotnext.core.infrastructure.support.init.ModuleInit.importScript(ModuleInit.java:177)
	at at.benjaminnussbaum.spotbudget.Init.importSampleData(Init.java:29)

Without the UPDATE line, it works.
Is that something that should be considered?

[mojo2012]

Fixed. todo for me: add an integrationtest