When editing the assignee an input box was shown below the current
assignee. This gave the impression like another assignee is added
(similar to how more reviewers can be added), but not that the current
assignee is edited. Instead hide the assignee link when the assignee
is edited and populate the input box with the current assignee. This
is similar to how editing the topic works. The text with current
assignee in the input box is selected so that it can be easily erased
by typing a new assignee.
Change-Id: I3d2533c018ddd4018199e68c0b7e5c3205f35856
Signed-off-by: Edwin Kempin <ekempin@google.com>
cbda5bae31