message: fix: always set transformed model value on attrs
diff: @@ -250,8 +250,7 @@ function mergeHook (f1: any, f2: any): Function {
  function transformModel (options, data: any) {
  const prop = (options.model && options.model.prop) || 'value'
  const event = (options.model && options.model.event) || 'input'
  - const addTo = (options.props && prop in options.props) ? 'props' : 'attrs'
  - ;(data[addTo] || (data[addTo] = {}))[prop] = data.model.value
  + ;(data.attrs || (data.attrs = {}))[prop] = data.model.value
  const on = data.on || (data.on = {})
  const existing = on[event]
  const callback = data.model.callback
  