How to display license information in current language using doclicense package?

I’m working in a template and I want to use the doclicense package and I want it to display license information accordingly to the current language. Unfortunately, for some reason, it is not doing as expected.

The minimal class file example testclass.cls is displayed below:

ProvidesClass{testclass}
LoadClass{article}
RequirePackage[brazilian,english]{babel}
RequirePackage[
    type={CC},
    modifier={by},
    version={4.0},
]{doclicense}

def@keytest{
    iflanguage{english}{test}{
    iflanguage{portuguese}{TESTE}{not found}
    }}

newcommand{showtest}{%
 @keytestpar 
 doclicenseTextpar
 doclicenseIcon
}

and the .tex file is below:

documentclass[brazilian,english]{testclass}
usepackage[utf8]{inputenc}

title{Teste}
author{Eu}

begin{document}
selectlanguage{brazilian}
maketitle

showtest
end{document}

The result achieved from the above code setting the language to english is:

and the result setting the language to brazilian is:

Note that the article’s date and the test variable (keytest) changed their values accordingly, but the license text did not.

documentclass{article}
RequirePackage[brazilian,english]{babel}
RequirePackage[
    type={CC},
    modifier={by},
    version={4.0},
]{doclicense}

begin{document}
selectlanguage{brazilian}
doclicenseTextpar
doclicenseIcon


makeatletterinput{doclicense-brazilian.ldf}makeatother
doclicenseTextpar
doclicenseIcon
end{document}

documentclass{article}
RequirePackage[brazilian,english]{babel}
RequirePackage[
    type={CC},
    modifier={by},
    version={4.0},
]{doclicense}

newcommand{tlprintlicense}{
    iflanguage{english}{makeatletterinput{doclicense-english.ldf}makeatotherdoclicenseTextpardoclicenseIcon}{
    iflanguage{french}{makeatletterinput{doclicense-french.ldf}makeatotherdoclicenseTextpardoclicenseIcon}{
    iflanguage{german}{makeatletterinput{doclicense-german.ldf}makeatotherdoclicenseTextpardoclicenseIcon}{
    iflanguage{portuguese}{makeatletterinput{doclicense-brazilian.ldf}makeatotherdoclicenseTextpardoclicenseIcon}{doclicenseTextpardoclicenseIcon}
    }}}}

begin{document}
selectlanguage{brazilian}
tlprintlicense

selectlanguage{english}
tlprintlicense
end{document}