[BUG] Lexing escaped interpolated regions

[KrosFire]

Example:
A text like this:

"\"\\{should not be interpolated // should not be a comment}\""

With a set of rules like this:

let symbols = vec!['/', '"', '{', '}'];
let regions = reg![reg!(string as "String" => {
    begin: "\"",
    end: "\"",
    tokenize: true
} => [
    reg!(str_interp as "string interpolation" => {
        begin: "{",
        end: "}",
        tokenize: true,
        allow_left_open: true
    } ref global)
]),
reg!(comment as "Comment" => {
    begin: "//",
    end: "\n",
    allow_left_open: true
})];
let compounds = vec![('/', '/')];

is lexed to:

[("\"", 1, 1), ("\\", 1, 2), ("{", 1, 3), ("should", 1, 4), ("not", 1, 11), ("be", 1, 15), ("interpolated", 1, 18), ("// should not be a comment\\}\"", 1, 31)]

When I inspected the region stack, theres is a bug that pushes string interpolation region and then a comment region, that creates a untokenized string