Fix braces escaping when template doesn't contains any variable

[poupounetjoyeux]

The issue :

When using a message with only escaped braces, it will be returned with special encoded characters

Example :

Having a message defined as follow
{ 'my.message': 'I want to display \\{this_escaped_text\\} to my user' }

Then the final printed message will look like :
I want to display \u0000this_escaped_text\u0001 to my user
Or in console decoding unicodes like this without braces :
I want to display this_escaped_text to my user

What I finally expect is :
I want to display {this_escaped_text} to my user

Identified root cause

Since there is only escaped braces, the template.split function will return the whole text in the unique head part
However, this part is pushed in the processed array without decoding it and then is returned without more process

My proposal

• Like all other pushed values in the processed array, push the decoded head instead of the encoded one
• Add a unit test that represent the issue and is failing with the old code, passing witht the new one

[Marsup]

Thanks, nice catch! Not sure why I was so confident in that answer.