Issue collector page inside Project Admin is broken when user's language is set to french

Issue Summary

The Issue Collectors page that is contained inside the Project Settings section of a project will not load correctly if the user has its language set to french.

Steps to Reproduce

1. Go into your profile and change the display language to french.
2. Load the Issue collectors page inside the Project settings.

Expected Results

Page loads as expected, showing all the existing issue collectors.

Actual Results

The page will load with some formatting errors, not all issue collectors will be displayed and the following exception will be thrown in the atlassian-jira.log log file:

2019-09-23 11:21:43,797 http-nio-8080-exec-15 ERROR padmin 681x388x1 18bk2nn 0:0:0:0:0:0:0:1 /secure/ViewCollectors!default.jspa [c.atlassian.velocity.DefaultVelocityManager] MethodInvocationException occurred getting message body from Velocity: java.lang.IllegalArgumentException: Unmatched braces in the pattern.
java.lang.IllegalArgumentException: Unmatched braces in the pattern.

Workaround

Change the profile language to any other available language and load the page.