v6.4.3
bem-xjst should not render attrs if it’s not hash. Strings, arrays, and etc.
Example:
// BEMJSON:
{ block: 'b', attrs: [ 1, 2 ] }
Result before fix (v6.4.2):
<div class="b" 0="1" 1="2"></div>
Result after fix (v6.4.3):
<div class="b"></div>