fix(FormGroup): remove id when used with RadioGroup (#2152)

Author: romhml

src/runtime/components/forms/RadioGroup.vue

@@ -104,7 +104,7 @@ export default defineComponent({
     const { ui, attrs } = useUI('radioGroup', toRef(props, 'ui'), config, toRef(props, 'class'))
     const { ui: uiRadio } = useUI('radio', toRef(props, 'uiRadio'), configRadio)
 
-    const { emitFormChange, color, name } = useFormGroup(props, config)
+    const { emitFormChange, color, name } = useFormGroup(props, config, false)
     provide('radio-group', { color, name })
 
     const onUpdate = (value: any) => {

src/runtime/composables/useFormGroup.ts

@@ -12,13 +12,15 @@ type InputProps = {
 }
 
 
-export const useFormGroup = (inputProps?: InputProps, config?: any) => {
+export const useFormGroup = (inputProps?: InputProps, config?: any, bind: boolean = true) => {
   const formBus = inject<UseEventBusReturn<FormEvent, string> | undefined>('form-events', undefined)
   const formGroup = inject<InjectedFormGroupValue | undefined>('form-group', undefined)
   const formInputs = inject<any>('form-inputs', undefined)
 
   if (formGroup) {
-    if (inputProps?.id) {
+    if (!bind || inputProps.legend) {
+      formGroup.inputId.value = undefined
+    } else if (inputProps?.id) {
       // Updates for="..." attribute on label if inputProps.id is provided
       formGroup.inputId.value = inputProps?.id
     }