Redmine

When viewing an issue page that lists sub-issues or related issues, using the context menu (right-click) on one of those issues to watch or unwatch it causes the watchers sidebar of the currently displayed (parent) issue to be incorrectly re-rendered with the watcher data of the operated issue.

This is a display-only bug. The parent issue's watchers are not modified in the database — only the sidebar rendering is wrong.

Steps to reproduce:
1. Open an issue that has sub-issues or related issues.
2. Right-click on a sub-issue or related issue to open the context menu.
3. Click Watch or Unwatch.
4. The watchers sidebar on the parent issue page is updated with the watcher information of the sub-issue, not the parent issue.