First of all thank you for the support you didn’t provide! 
I found a way to workaround the issue on my side by removing [PR] prefix from build name. It looks like the special characters in glob expressions are not escaped neither on minimax nor your side. Please fix the issue in your Sonar Scanner in this line:
let matchResults: string[] = minimatch.match(findResults, pattern, matchOptions);
tl.debug(matchResults.length + " matches");
You have the test case in the above post.