variable concatenation #{} inside blocktrans with "with" arguments ignoring variables

[ewen-lbh]

• pypugjs version: 5.8.1
• Django version: 2.2.2
• Python version: 3.6.8
• Operating System: Pop!_OS 18.10

Description

I was trying to use a -blocktrans with stuff=thing and use the variables inside.
Relevant snippet:

-block header_description
    if collection.tracks|length > 1
        -blocktrans with trackscount=collection.tracks|length kind=collection.get_kind_display
            | #{trackscount}-tracks #{kind}
    else
        | #{collection.get_kind_display|title}
    br/
    | released #{collection.date|date:"SHORT_DATE_FORMAT"}

I was expecting to get this:

But I got this:

I fixed it by using

{{trackscount}}-tracks {{kind}}

instead of

#{trackscount}-tracks #{kind}

I wish we could use pug's syntax tho, as my syntax highlighter does not understand plain django syntax inside pug files