Variable interpolation not working for multiple classes in :not

• div:not(.class-a, .class-b, .class-c){} is supported in less
• div:not(.@{some-variale}-class) is also supported in less
  However:
• div:not(.@{some-variale}-class), .@{some-other-variale}-some-class)) is not supported and gives an error

e.g.

@ant-prefix: ant;
div:not(.@{ant-prefix}-radio-wrapper, .@{ant-prefix}-checkbox-wrapper){
  color: #ffffff;
}

Error message:

Module build failed (from ./node_modules/less-loader/dist/cjs.js):


  label:not(
    .@{ant-prefix}-radio-wrapper,
                              ^
Missing closing ')'

Reproduce the supplied Less selector with multiple interpolated variables inside :not, then trace the parser entry point handling that selector form. Done means the example compiles without the “Missing closing ')'” error and preserves all selector alternatives; no specific files or tests are named in the issue.