Idempotent issue for SCSS map

[sosukesuzuki]

Prettier 2.8.1
Playground link

--parser scss

Input:

$display-breakpoints: map-deep-merge(
  (
    "xs-only": "only screen and (max-width: #{map-get($grid-breakpoints, "sm")-1})",
  ),
  $display-breakpoints
);

Output:

$display-breakpoints: map-deep-merge(
  (
    "xs-only": "only screen and (max-width: #{map-get($grid-breakpoints, "sm")-1})"
  ),
  $display-breakpoints
);

Second Output:

$display-breakpoints: map-deep-merge(
  (
    "xs-only": "only screen and (max-width: #{map-get($grid-breakpoints, " sm
      ")-1})",
  ),
  $display-breakpoints
);

Expected behavior:

same as input

Related:

• SCSS: function arguments on different lines in maps #9128
• Regression in 2.8.1: Commas are removed from fn args in Sass maps. #13984