Fix :matches, :not after something matched

Closes GH-6.

Author: wooorm

lib/pseudo.js

@@ -261,6 +261,8 @@ function has(query, element, _1, _2, state) {
   /** @type {SelectState} */
   const childState = {
     ...state,
+    // Not found yet.
+    found: false,
     // Do walk deep.
     shallow: false,
     // One result is enough.
@@ -344,6 +346,8 @@ function matches(query, element, _, parent, state) {
   /** @type {SelectState} */
   const childState = {
     ...state,
+    // Not found yet.
+    found: false,
     // Do walk deep.
     shallow: false,
     // One result is enough.

test/core.js

@@ -119,4 +119,13 @@ test('all together now', () => {
       h('dd', 'Hotel')
     ]
   )
+
+  assert.deepEqual(
+    selectAll(
+      'a:not([class])',
+      u('root', [h('a#w.a'), h('a#x'), h('a#y.b'), h('a#z')])
+    ),
+    [h('a#x'), h('a#z')],
+    'should support `:not` with multiple matches (GH-6)'
+  )
 })