When copying from a pull request the pasteboard will contain formatting characters from the underlying markdown. For instance, copying an item from a list will be prefixed with an asterisk. This is a recent change with the previous behaviour copying only selected characters to the pasteboard.

This behaviour is unintuitive and potentially dangerous. For instance, a PR may contain a markdown list of commands to execute for QA. If copying an item from the list into a prompt, the command will be prefixed with an asterisk, silently modifying the command without alerting the user.

Is it possible to turn this behaviour off?

If the underlying markdown formatting is required, the user can use the ‘edit’ view of the PR.