Spring WebFlow - autodetect imported Spring beans

I have a project based on Spring WebFlow 1.0 configured like this:

<flow xmlns="http://www.springframework.org/schema/webflow"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://www.springframework.org/schema/webflow http://www.springframework.org/schema/webflow/spring-webflow-1.0.xsd">

    <start-state idref="myStartScreen"/>

    <view-state id="myStartScreen" view="sandbox.start-screen">
        <transition on="continue" to="someAction"/>    
    </view-state>

    <action-state id="someAction">
        <bean-action bean="myTestAction" method="getInfo">
            <method-arguments>
                <argument expression="flowScope.idNumber" />
            </method-arguments>
        </bean-action>
        <transition on="success" to="myResultScreen" />
    </action-state>

    <view-state id="myResultScreen" view="sandbox.result-screen">
         <transition on="continue" to="myStartScreen"/>    
     </view-state>

    <import resource="my-flow-beans.xml" />

</flow>

Why IDEA does not autodetect imported "flow" Spring beans?