Revision control
++ <?xml version="1.0" encoding="UTF-8"?>
++ <scxml xmlns="http://www.w3.org/2005/07/scxml" version="1.0" binding="early"
++ name="content-expr-in-send" datamodel="ecmascript">
++ <state id="top">
++ <onentry>
++ <send>
++ <content>blah</content>
++ </send>
++ <send event="timeout">
++ <param name="p" expr="'v'"/>
++ </send>
++
++ </onentry>
++
++ <state id="first">
++ <transition event="timeout" target="second"/>
++ </state>
++
++ <state id="second">
++ <onentry>
++ <send>
++ <content expr="_event.data"/>
++ </send>
++ <send event="timeout"/>
++ </onentry>
++ <transition event="timeout" target="pass"/>
++ </state>
++ </state>
++
++ <final id="pass"><onentry><log label="Outcome" expr="'pass'"/></onentry></final>
++ <final id="fail"><onentry><log label="Outcome" expr="'fail'"/></onentry></final>
++ </scxml>