Cannot assign scoping to few result user objects at once

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Hi all,

I've got an issue with one of the extensions I'm developing. Long story short, after clicking new button added on the Mechanical's toolbar, set of four result objects is created in the Mechanical's Tree. Everything works fine apart from one thing. When I'm selecting all of those results and try to change scoping method to Named Selection and select specific named selection, only first and last object on the tree is affected (see attached picture). Is it some software bug or something? Or something is wrong with my .XML (see below piece of code with results definition)?

<result name="mem_long" version="1" caption="Sigma_mem_long stress criteria" unit="unitless" icon="result" location="elemnode" type="scalar">
        <callbacks>
            <evaluate>MemLong</evaluate>
            <canadd>CanAddGeneral</canadd>
        </callbacks>
        <property name="geometry" caption="Geometry" control="scoping">
        <attributes selection_filter="edge" />
        </property>
    </result>
<result name="out_long" version="1" caption="Sigma_out_long stress criteria" unit="unitless" icon="result" location="elemnode" type="scalar">
        <callbacks>
            <evaluate>OutLong</evaluate>
            <canadd>CanAddGeneral</canadd>
        </callbacks>
        <property name="geometry" caption="Geometry" control="scoping">
        <attributes selection_filter="edge" />
        </property>
    </result>
<result name="mem_hoop" version="1" caption="Sigma_mem_hoop stress criteria" unit="unitless" icon="result" location="elemnode" type="scalar">
    <callbacks>
        <evaluate>MemHoop</evaluate>
        <canadd>CanAddGeneral</canadd>
    </callbacks>
    <property name="geometry" caption="Geometry" control="scoping">
    <attributes selection_filter="edge" />
    </property>
</result>
<result name="out_hoop" version="1" caption="Sigma_out_hoop stress criteria" unit="unitless" icon="result" location="elemnode" type="scalar">
    <callbacks>
        <evaluate>OutHoop</evaluate>
        <canadd>CanAddGeneral</canadd>
    </callbacks>
    <property name="geometry" caption="Geometry" control="scoping">
    <attributes selection_filter="edge" />
    </property>
</result>