[OpenSIPS-Users] dlg_val before create_dialog

[M S]

Hi list,
I have a script like this:

..... some processing
if (is_method("INVITE") && !has_totag()) {
  $dlg_val(x)="y";
}
.... some processing
if (is_method("INVITE") && !has_totag()) {
    create_dialog("pPB")
}

My first question is, why does this work?! documents say $dlg_val cannot be
used before dialog is created, and create_dialog is called after dlg_val
here.
I have verified that indeed dialog is created using create_dialog, and
indeed $dlg_val(x) stores the value (it is available later in the dialog).

Second question, once or two times a day (after thousands of calls) I see a
do_assign setting PV failed error message on the $dlg_val(x)="y" line.
Since this shouldn't have worked to begin with, I don't know how to debug
this. Any suggestions?

Thank you!
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