Short-hand for `true` not available on attributes with "prop" namespace

[AFatNiBBa]

In this playground, if you change this line

<input type="checkbox" prop:indeterminate={true} />

with this

<input type="checkbox" prop:indeterminate />

it throws an error while compiling

/main.tsx: Property right of AssignmentExpression expected node to be of a type ["Expression"] but instead got "JSXEmptyExpression"

they should mean the same thing