### Summary When renaming a namespace, the uploads used in several markdown fields won't be visible. This is because the `description_html` field still contains the links to the upload with the _old_ namespace name. We need to clear the cached HTML fields so the markup can be re-rendered. Result visible here: https://gitlab.com/reprazents-test-space/group-renamed/project-1/issues/1 ### Steps to reproduce 1. Create a group `group` 1. Create a project in this group, `project` 1. Create an issue in this project, and upload some files to it. 1. Rename the `group` to `group-renamed` 1. Visit the issue again, the images are 404-ing ### What is the current *bug* behavior? The links in the cached markdown fields still point to the files in the old namespace name. ### What is the expected *correct* behavior? The markdown cache should be cleared so it can be regenerated.