Ensure the comment & close button shows up for the author
We had a bug where the person who opened a ticket could close it
via the button at the top right above the meta-data but couldn't
use the "Comment & Close" button.
This commit fixes that.
Fixes https://pagure.io/pagure/issue/4150
Signed-off-by: Pierre-Yves Chibon <pingou@pingoured.fr></pingou@pingoured.fr>