Dublicate declaration

[MikalJ]

Several place in the source, something similiar to this is used at the start of a function

function lambda(tmpl, t) {
    var f, fn = [], t = t || tag,
    ...
}

This is invalid JS as the variable 't' is declared twice. First as an argument in the function signature and then as a local variable inside the function body. The correct approach would be something like this:

function lambda(tmpl, t) {
    t = t || tag;
    var f, fn = [],
    ...
}

As far as I can tell this is repeated on line 42, 96 and 113