Epic comment thread

Dependencies

https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/15732 needs to be merged before this can be completed.

Description

• Comment/discussion thread in an epic.
• Same design/implementation as issues and merge requests.
• Includes threaded discussions (same as issues).
• Additionally, the requirements for system notes in epics in these issues will be displayed after this issue is implemented. We should test these. https://gitlab.com/gitlab-org/gitlab-ee/issues/3947 https://gitlab.com/gitlab-org/gitlab-ee/issues/3853

Edge cases

• None yet

Out of scope

• Notifications and todos are out of scope
• Autocomplete is out of scope, see https://gitlab.com/gitlab-org/gitlab-ee/issues/4084.
• API is out of scope, it will be worked on it this other issue: https://gitlab.com/gitlab-org/gitlab-ce/issues/41860

This page may contain information related to upcoming products, features and functionality. It is important to note that the information presented is for informational purposes only, so please do not rely on the information for purchasing or planning purposes. Just like with all projects, the items mentioned on the page are subject to change or delay, and the development, release, and timing of any products, features, or functionality remain at the sole discretion of GitLab Inc.