set self.is_known_utf8 to false in extend_from_slice

rust-lang-ci · Jun 26, 2024 · e5167fe · e5167fe
1 parent a299aa5
commit e5167fe
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/library/std/src/sys_common/wtf8.rs b/library/std/src/sys_common/wtf8.rs
@@ -480,7 +480,7 @@ impl Wtf8Buf {
     #[inline]
     pub(crate) fn extend_from_slice(&mut self, other: &[u8]) {
         self.bytes.extend_from_slice(other);
-        self.is_known_utf8 = self.is_known_utf8 || self.next_surrogate(0).is_none();
+        self.is_known_utf8 = false;
     }
 }