Simple `$in <= 10` formula causes form not to load #5844

form.xhtml

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    <xh:head>
        <xh:title>Simple `$in &lt;= 10` formula causes form not to load #5844</xh:title>
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            <!-- Main instance -->
            <xf:instance id="fr-form-instance" xxf:exclude-result-prefixes="#all" xxf:index="id">
                <form>
                    <section-1>
                        <grid-1>
                            <in/>
                            <out/>
                        </grid-1>
                        
                    </section-1>
                </form>
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            <!-- Bindings -->
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                <xf:bind id="section-1-bind" name="section-1" ref="section-1">
                    <xf:bind id="grid-1-bind" ref="grid-1" name="grid-1">
                        <xf:bind id="in-bind" name="in" ref="in" xxf:whitespace="trim"/>
                        <xf:bind id="out-bind" ref="out" name="out" xxf:whitespace="trim" calculate="$in &lt;= 10"
                                 readonly="false()"/>
                    </xf:bind>
                    
                </xf:bind>
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            <!-- Metadata -->
            <xf:instance id="fr-form-metadata" xxf:readonly="true" xxf:exclude-result-prefixes="#all">
                <metadata>
                    <application-name>issue</application-name>
                    <form-name>5844</form-name>
                    <title xml:lang="en">Simple `$in &lt;= 10` formula causes form not to load #5844</title>
                    <description xml:lang="en"/>
                    <created-with-version>2022.1-SNAPSHOT PE</created-with-version>
                    <email>
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                                <form-fields/>
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                <resources>
                    <resource xml:lang="en">
                        <section-1>
                            <label>Untitled Section</label>
                        </section-1>
                        <in>
                            <label/>
                            <hint/>
                            
                        </in>
                        <out>
                            <label>Calculated</label>
                            <hint/>
                        </out>
                    </resource>
                </resources>
            </xf:instance>

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                    <xf:label ref="$form-resources/section-1/label"/>
                    <fr:grid id="grid-1-grid" bind="grid-1-bind">
                        <fr:c y="1" x="1" w="6">
                                <xf:input id="in-control" bind="in-bind">
                                    <xf:label ref="$form-resources/in/label"/>
                                    <xf:hint ref="$form-resources/in/hint"/>
                                <xf:alert ref="$fr-resources/detail/labels/alert"/>
                                    
                                </xf:input>
                            </fr:c>
                        <fr:c y="1" x="7" w="6">
                            <xf:input id="out-control" bind="out-bind">
                                <xf:label ref="$form-resources/out/label"/>
                                <xf:hint ref="$form-resources/out/hint"/>
                                <xf:alert ref="$fr-resources/detail/labels/alert"/>
                        
                        
                            </xf:input>
                        </fr:c>
                    </fr:grid>
                </fr:section>
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