:is() with a [] selector causes removal of is:()

[mathieulesniak]

Playground link

Input:

.tab {
  &:is(input[type="radio"]) {
    display: none;
  }
}

.tab {
  &:is(input) {
    display:none
  }
}

Expected:

.tab:is(input[type=radio]){display:none}.tab:is(input){display:none}

Actual:

.tabinput[type=radio]{display:none}.tab:is(input){display:none}

When mixing is: with a selector containing [] the :is( is removed, as the closing parenthesis.
Came across this behaviour when implementing a tabbed navigation with DaisyUI (repo tab code, implementation) . Simplified the playground to show the bug, this is not the actual DaisyUI code.

[Marukome0743]

The new release of v1.26.0 (git tag is v2.26.0) has fixed this issue.
Then your Playground link shows expected code.

.tab:is(input[type=radio]){display:none}.tab:is(input){display:none}

x-ref: fix: Fix codegen of :is(input:checked) #783