Dart-SASS CLI always compiles a file that uses a built-in module

[Oblomoff]

Problem

If the --update flag is specified Dart-SASS always compiles a file that uses a built-in module, ignoring the fact that the file has not been modified.

Reproduction

Create file test.scss

@use 'sass:map'; // This line causes the problem!

body {
    background-color: white;
}

run

sass --update test.scss test.css
sass --update test.scss test.css

Expected

If the --update flag is passed, Sass will only compile stylesheets whose dependencies have been modified more recently than the corresponding CSS file was generated.

Actual

Dart-SASS ignores file was not changed and compiles any time.