Notification emails for MR comment replies don't include the original comment

Summary

When someone replies to my comment on a MR, I get an email with their reply. However it includes the code context of my original comment, but not my original comment. This makes it generally impossible to understand their response from the email alone - it's missing the correct context.

Steps to reproduce

1. Person A create a MR
2. Person B comment on the MR on a specific line of code
3. Person A reply on the comment
4. Person B will then get an email for the reply...

Example Project

GitLab Enterprise Edition 12.0.3-ee

What is the current bug behavior?

Actual: The email doesn't include the comment from step 2 as context

What is the expected correct behavior?

Expected: The email includes the comment from step 2 as context

Relevant logs and/or screenshots

Sample email:

UI in Gitlab showing the original comment:

Output of checks

N/A

Results of GitLab environment info

Not available

Results of GitLab application Check

Not available

Possible fixes