notMatch - reverse is/pattern condition

condition: {
  when: 'Foo',
  pattern: /bar/,
  notMatch: true,
}


// Foo = 'bar' => false
// Foo = 'baar!' => true
condition: {
  when: 'Foo',
  is: 'bar',
  notMatch: true,
}


// Foo = 'bar' => false