1. Try to Ctrl+Click at <rich:componentControl for="loginModalPanel"/> in following xhtml:

<?xml version="1.0" encoding="windows-1251"?>
<!DOCTYPE composition PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<ui:composition xmlns="http://www.w3.org/1999/xhtml"
xmlns:ui="http://java.sun.com/jsf/facelets"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:rich="http://richfaces.org/rich">
<rich:componentControl for="loginModalPanel" />
<rich:modalPanel id="loginModalPanel">
<f:facet name="controls">
<rich:componentControl for="loginModalPanel"/>
</f:facet>
</rich:modalPanel>
</ui:composition>

It works for first rich:componentControl but doesn't for second one.