Host selector regression in 3.4.5 (since 3.4.0): :host(:not(.foo))

[ochafik]

The following works in 3.4.0 but not in 3.4.5:

:host(:not(.foo)) {
  left: 0;
}

(3.4.5 outputs {left:0} here!)

[mgreter]

This is already fixed on latest master. It also seems that sass 3.5 does not support this (beside 3.4 and 4.0 looking ok, only checked via sassmeister)

[ochafik]

Just to clarify:

• Still broken in branch master ; I've bisected the regression to the hotfix 2d640a7
• Broken in branch 3.4-stable
• Works in branch 3.4.x

[ochafik]

Could this bug please be reopened until master branch is fixed?

[mgreter]

Thanks for checking, can confirm this regressed once more. Unfortunately we probably will not be able to fix it without regressing other more common use cases in a forseeable future. See #2055. As said in my initial comment, this does not seem to be supported by original ruby sass 3.5, although it seems to be in 3.4 and 4.0 (as checked via sassmeister).