the options attribute doesn't understand track by

[MHL3060]

angular select attribute supports track by but not in this directive.

Error: [$parse:syntax] Syntax Error: Token 'track' is an unexpected token at column 15 of the expression [categories[0] track by category.categoryValue] starting at [track by category.categoryValue].

options="category as category.description for category in categories[0] track by category.categoryValue"

[dudapiotr]

+1, the same problem