dialog: check xdata length when loading profile from db #2058
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Pre-Submission Checklist
in
doc/
subfolder, the README file is autogenerated)Type Of Change
Checklist:
Description
When using a backend not supporting "NULL", like Redis, which store it as an empty string, xdata.s can be not null (it contains '\0'). This leads to an error trying to read it as a json document.
Not really a bug, but it leads to the error
"invalid json doc [[]]"
being printed each time a dialog is loaded from db (Redis).