add hyrating check back

preactjs · May 18, 2023 · 1582306 · 1582306
1 parent 598959c
commit 1582306
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/src/diff/children.js b/src/diff/children.js
@@ -153,7 +153,8 @@ export function diffChildren(
 				firstChildDom = newDom;
 			}
 
-			let isMounting = oldVNode === EMPTY_OBJ || oldVNode._original === null;
+			let isMounting =
+				isHydrating || oldVNode === EMPTY_OBJ || oldVNode._original === null;
 			let hasMatchingIndex = !isMounting && matchingIndex === skewedIndex;
 			if (isMounting) {
 				if (matchingIndex == -1) {
@@ -187,7 +188,6 @@ export function diffChildren(
 				hasMatchingIndex || (matchingIndex == i && !isMounting);
 
 			if (
-				!isHydrating &&
 				!isMounting &&
 				typeof childVNode.type == 'function' &&
 				(matchingIndex !== skewedIndex ||