Some liquid functions are not working - especially the time functions

All of the time functions are returning the empty string:

Functions: `time, today, http_time, cookie_time, localtime, now, utctime`

Example response where `arg` is added argument:

"args": "user_key=5941428bd561fa5a91489f2c36ed8cb3&arg=",

Apicast Issue

https://github.com/3scale/apicast/issues/909

Workaround

Currently, how these functions work - it is required to call it this way: `{{ <some_param> | now}}`

So, for example, this works:

{{ uri | now }}