I have a bunch of subprocesses which are executed from main pageflow like this:

<process-state name="subprocess-regenerate-password">
        <sub-process name="regeneratePasswordSubProcess.jpdl"/>
        <transition to="checkCredentials"/>
 </process-state>

and in this sub-process' pageflow I have something like:

<start-state name="start">
        <transition to="step-enter-email"/>
</start-state>

<page name="step-enter-email" view-id="/user/regeneratePass.xhtml"
            back="enabled">
        <redirect/>    
        <transition name="REGISTER" to="subprocess-register"/>
        <transition to="generateAndSendNewPassword"/>
</page>

But after using browser's back button from this subprocess and trying to perform different navigation from the main pageflow user is forced again into /user/regeneratePass.xhtml view and illegal navigation error is reported.

When there are no suprocesses back button handling works ok.

JIRA?