Merge branch 'temporarily-revert-appending-templates-before-long-term-ux-fix' into 'master'

Stop appending templates - Temporary fix

## What does this MR do?

This is the temporary fix for #23315. This stops the templates appending to any existing text.

## Are there points in the code the reviewer needs to double check?

## Why was this MR needed?

Temporary fix for #23315.

## Screenshots (if relevant)

![2016-10-21_21.58.55](/uploads/ba54d89fcb2fb9cf99ff24c8623ae413/2016-10-21_21.58.55.gif)

## Does this MR meet the acceptance criteria?

- [ ] [CHANGELOG](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CHANGELOG.md) entry added
- [ ] [Documentation created/updated](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/doc/development/doc_styleguide.md)
- [ ] API support added
- Tests
  - [ ] Added for this feature/bug
  - [ ] All builds are passing
- [ ] Conform by the [merge request performance guides](http://docs.gitlab.com/ce/development/merge_request_performance_guidelines.html)
- [ ] Conform by the [style guides](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CONTRIBUTING.md#style-guides)
- [ ] Branch has no merge conflicts with `master` (if it does - rebase it please)
- [ ] [Squashed related commits together](https://git-scm.com/book/en/Git-Tools-Rewriting-History#Squashing-Commits)

## What are the relevant issue numbers?

See merge request !7050