[request-tracker-maintainers] Bug#869641: "encountered object '1', but neither allow_blessed[..]" upon login

[Peter Palfrader]

Package: request-tracker4
Version: 4.4.1-3+deb9u2
Severity: grave

Hi,

I just upgraded an RT instance from jessie to stretch.

Immediately upon login I get

| An internal RT error has occurred. Your administrator can find more details in RT's log files.

and this in my logs:

|[11788] [Tue Jul 25 08:40:12 2017] [error]: encountered object '1', but neither allow_blessed, convert_blessed nor allow_tags settings are enabled (or TO_JSON/FREEZE method missing) at /usr/share/perl5/JSON.pm line 154.
|
|Stack:
|  [/usr/share/perl5/JSON.pm:154]
|  [/usr/share/request-tracker4/lib/RT/Interface/Web.pm:193]
|  [/usr/share/request-tracker4/lib/RT/Interface/Web.pm:4396]
|  [/usr/share/request-tracker4/html/Elements/JavascriptConfig:87]
|  [/usr/share/request-tracker4/html/Elements/Header:64]
|  [/usr/share/request-tracker4/html/index.html:4]
|  [/usr/share/request-tracker4/lib/RT/Interface/Web.pm:696]
|  [/usr/share/request-tracker4/lib/RT/Interface/Web.pm:375]
|  [/usr/share/request-tracker4/html/autohandler:53] (/usr/share/request-tracker4/lib/RT/Interface/Web/Handler.pm:209)

Cheers,
-- 
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