Don't submit reply until user has closed login welcome dialog
Don't submit reply until user has closed login welcome dialog

If the reply is submitted before the dialog is closed, then, after the
browser has moved the viewport to focus the new reply, the welcome
dialog might no longer be visible in the viewport.  But the viewport
will still be dimmed, because the welcome dialog is modal.

debiki/debiki-server-old,debiki/debiki-server-old,debiki/debiki-server-old,debiki/debiki-server-old