fix(cursors): setting falsy prop

Author: Varixo

packages/qwik/src/core/client/vnode-diff.ts

@@ -1535,8 +1535,9 @@ export function cleanup(container: ClientContainer, journal: VNodeJournal, vNode
         // SPECIAL CASE: If we are a component, we need to descend into the projected content and release the content.
         const attrs = (vCursor as VirtualVNode).props;
         if (attrs) {
-          for (const [key, value] of Object.entries(attrs)) {
+          for (const key of Object.keys(attrs)) {
             if (isSlotProp(key)) {
+              const value = attrs[key];
               if (value) {
                 attrs[key] = null; // prevent infinite loop
                 const projection =
@@ -1565,7 +1566,9 @@ export function cleanup(container: ClientContainer, journal: VNodeJournal, vNode
           vCursor = vFirstChild;
           continue;
         }
-      } else if (vCursor === vNode) {
+      }
+      // TODO: probably can be removed
+      else if (vCursor === vNode) {
         /**
          * If it is a projection and we are at the root, then we should only walk the children to
          * materialize the projection content. This is because we could have references in the vnode

packages/qwik/src/core/client/vnode.ts

@@ -399,7 +399,7 @@ export const vnode_getProp = <T = unknown>(
 
 export const vnode_setProp = (vNode: VNode, key: string, value: unknown) => {
   if (vnode_isElementVNode(vNode) || vnode_isVirtualVNode(vNode)) {
-    if (!value && vNode.props) {
+    if (value == null && vNode.props) {
       delete vNode.props[key];
     } else {
       vNode.props ||= {};

packages/qwik/src/core/shared/cursor/cursor-queue.ts

@@ -7,7 +7,7 @@
 import { VNodeFlags } from '../../client/types';
 import type { Container } from '../types';
 import type { Cursor } from './cursor';
-import { getCursorData, setCursorData } from './cursor-props';
+import { getCursorData } from './cursor-props';
 
 /** Global cursor queue array. Cursors are sorted by priority. */
 let globalCursorQueue: Cursor[] = [];