Mixing completion of Nth and (N+1)th parameters

[Google Code Exporter]

To reproduce, use the following XML-code:

<VIEW ...>
    <COMMAND name="crypto pki clear keys"
        help="Erase all private keys">
        <ACTION>pki-clear-keys ${__interactive}</ACTION>
    </COMMAND>


    <COMMAND name="crypto pki clear key"
        help="Erase private key by name">
        <PARAM name="name"
            help="Key name"
            ptype="IKE_CONTAINER"
            completion="${PKI_POSSIBLE_KEY}" />
        <ACTION>pki-clear-key ${name}</ACTION>
    </COMMAND>
</VIEW>

<VAR name="PKI_POSSIBLE_KEY" help="poss key" dynamic="true">
<ACTION>echo "key.p15"</ACTION>
</VAR>


If you type the command:
# crypto pki clear key
and press Tab, you will get:

key keys key.p15

Somehow completions of the commands "crypto pki clear key/keys" is mixed with 
completion of "name" parameter in the command "crypto pki clear key".

Original issue reported on code.google.com by [e-mail] on 14 Jan 2013 at 1:10