Clojurescript this-as macro points to global object - clojurescript

Question

During writting reactjs tutorial in clojurescrtipt i've found that this-as macro compiles to
(function(){var t = this; return t;}
which always points to window inside react classes. Sometimes i can workaround this by js* this but not inside let or map cuz they are also compiled to functions.
How can i access react js this inside let form?
Situation on fiddle: http://jsfiddle.net/VkebS/57/
and a piece of tutorial FYI:
(def comment-list
(React/createClass
#js{:render
(fn [] (dom/div #js {:className "commentList"}
(let [d (this-as t (.. t -props -data))]
(map #(commnt #js {:author (:author %)} (:text %)) d))))}))
PS: i can use native array for data and native map function
(def comment-list
(React/createClass
#js{:render
(fn [] (dom/div #js {:className "commentList"}
(.map (.. (js* "this") -props -data) #(commnt #js {:author (:author %)} (:text %)))))}))
that works, but...

Answer 1

this-as works if you use it at start of render function:
(def commnt
(React/createClass
#js {:render
(fn []
(this-as this
(dom/div #js {:className "comment"}
(dom/h2 #js {:className "commentAuthor"}
(.. this -props -author))
(dom/span #js {:dangerouslySetInnerHTML
#js{:__html
(.makeHtml converter (.. (js* "this") -props -children toString))}}))))}))
see also: https://github.com/swannodette/om/blob/master/src/om/dom.cljs#L34