Firefox 142 treats & as :where(:scope) in @scope blocks (#27723)

* In Firefox, & inside at-scope blocks has no implicit specificity

* Update css/selectors/nesting.json

Co-authored-by: Claas Augner <[email protected]>

---------

Co-authored-by: Claas Augner <[email protected]>

Author: bsmth

css/selectors/nesting.json

@@ -51,6 +51,41 @@
             "standard_track": true,
             "deprecated": false
           }
+        },
+        "at-scope": {
+          "__compat": {
+            "description": "`&` treated as `:where(:scope)` in `@scope` blocks",
+            "tags": [
+              "web-features:nesting"
+            ],
+            "support": {
+              "chrome": {
+                "version_added": false
+              },
+              "chrome_android": "mirror",
+              "edge": "mirror",
+              "firefox": {
+                "version_added": "142",
+                "impl_url": "https://bugzil.la/1975531"
+              },
+              "firefox_android": "mirror",
+              "oculus": "mirror",
+              "opera": "mirror",
+              "opera_android": "mirror",
+              "safari": {
+                "version_added": false
+              },
+              "safari_ios": "mirror",
+              "samsunginternet_android": "mirror",
+              "webview_android": "mirror",
+              "webview_ios": "mirror"
+            },
+            "status": {
+              "experimental": true,
+              "standard_track": true,
+              "deprecated": false
+            }
+          }
         }
       }
     }