Inject tag (in second Tagify)
mixed-mode [[example]] with [[{"value":"tags"}]].
[[{"value":200, "text":" cartman ", "title":"Eric Cartman", "prefix":"@"}]] and [[{"value":1000, "text":"cartman", "title":"xxx", "prefix":"@", "readonly":true}]] [[kyle]] do not know [[homer simpson]] because: (new line) last tag - [[{"value": "readonly", "readonly":true}]]