Provide a consistent monospaced markdown that supports trailing or leading spaces and adjacent letters

As a JIRA administrator, I'd like to request the review of how the monospaced markdown is currently working in the new JIRA User Interface.

Currently, the markdown doesn't work very well depending on the brackets' position:

E.g.:

1 - {{testing}}

2 - {{ testing }}

3 - {{testing }}
4 - {{ testing}}
5 - foo{{bar}} 
6 - see how multiple {{markdown}}s will not {{render}} correctly

The results of this markup are the following: