cubicweb-comment #4910059 Add a new sub-comment nests divs [validation pending]

From the generated DOM:

<li class="comment" id="comment1481569">
  <div id="comment1481569Div">
    <div id="comment1481569Div">
      <div class="commentInfo">
      ...
prioritynormal
typebug
done in1.11.1
load0.500
load left0.000
closed by#27c1bc9e16d5 [data] Fix loadxhtml div nesting (closes #4910059)
patch[data] Fix loadxhtml div nesting (closes #4910059) [applied]