variable naming of a map

[andredewaard]

Simple question and it doesn't really need to be fixed but why is it that i get an error while doing this:

$border-radius-100: #f8f9fa !default;
$border-radius-200: #e9ecef !default;
$border-radius-300: #dee2e6 !default;
$border-radius-400: #ced4da !default;
$border-radius-500: #adb5bd !default;
$border-radius-600: #6c757d !default;
$border-radius-700: #495057 !default;
$border-radius-800: #343a40 !default;
$border-radius-900: #212529 !default;

$border-radius: () !default;

$border-radius: map-merge(
  (
    "100": $border-radius-100,
    "200": $border-radius-200,
    "300": $border-radius-300,
    "400": $border-radius-400,
    "500": $border-radius-500,
    "600": $border-radius-600,
    "700": $border-radius-700,
    "800": $border-radius-800,
    "900": $border-radius-900
  ),
  $border-radius
);

But not when i'm doing this:

$border-radius-100: #f8f9fa !default;
$border-radius-200: #e9ecef !default;
$border-radius-300: #dee2e6 !default;
$border-radius-400: #ced4da !default;
$border-radius-500: #adb5bd !default;
$border-radius-600: #6c757d !default;
$border-radius-700: #495057 !default;
$border-radius-800: #343a40 !default;
$border-radius-900: #212529 !default;

$border-radius-map: () !default;

$border-radius-map: map-merge(
  (
    "100": $border-radius-100,
    "200": $border-radius-200,
    "300": $border-radius-300,
    "400": $border-radius-400,
    "500": $border-radius-500,
    "600": $border-radius-600,
    "700": $border-radius-700,
    "800": $border-radius-800,
    "900": $border-radius-900
  ),
  $border-radius-map
);

Error is:

$border-radius: map-merge(
               ^
      Argument `$map2` of `map-merge($map1, $map2)` must be a map

[nex3]

@andredewaard That looks like a bug. What implementation of Sass are you using, and which version?