The |render filter intends to perform nested interpretation, but if there's some aspect of the string input that can't be fully resolved, it will get deferred, but the EagerPrintTag will then wrap the output in {% raw %} tags as it doesn't realise that the output wasn't able to be fully rendered.
The
|renderfilter intends to perform nested interpretation, but if there's some aspect of the string input that can't be fully resolved, it will get deferred, but theEagerPrintTagwill then wrap the output in{% raw %}tags as it doesn't realise that the output wasn't able to be fully rendered.