unmarshal wrong slice in map not as encoding/json

[liuq19]

sonic 目前在map 场景下面，解析错误后，解析后的值未与标准库对齐。

code:

package issue_test

import (
	"testing"
    "encoding/json"
    `github.com/davecgh/go-spew/spew`
	`github.com/stretchr/testify/require`

	"github.com/bytedance/sonic"
)
var mapdata = `{
      "ptrslice": [{"id": "1"}, {"id": "2"}, {"id": "3"}, {"id": "4"}]
  }`;

  
type FooId struct {
	Id   int     `json:"id"`
}

func TestUnmarshalErrorInMapSlice(t *testing.T) {
 	var a, b map[string][]FooId
 	se := json.Unmarshal([]byte(mapdata), &a)
	je := sonic.Unmarshal([]byte(mapdata), &b)
    spew.Dump(se, a) // len(a) = 4
    spew.Dump(je, b) // len(b) = 1
	require.Equal(t, a, b);
}

var slicedata = `[{"id": "1"}, {"id": "2"}, {"id": "3"}, {"id": "4"}]`;

func TestUnmarshalErrorInSlice(t *testing.T) {
	var a, b []*FooId
	se := json.Unmarshal([]byte(slicedata), &a)
   je := sonic.Unmarshal([]byte(slicedata), &b)
   spew.Dump(se, a)
   spew.Dump(je, b)
   require.Equal(t, a, b);
}

[liuq19]

        	Error:      	Not equal:
        	            	expected: map[string][]issue_test.FooId{"ptrslice":[]issue_test.FooId{issue_test.FooId{Id:0}, issue_test.FooId{Id:0}, issue_test.FooId{Id:0}, issue_test.FooId{Id:0}}}
        	            	actual  : map[string][]issue_test.FooId{"ptrslice":[]issue_test.FooId{issue_test.FooId{Id:0}}}

        	            	Diff:
        	            	--- Expected
        	            	+++ Actual
        	            	@@ -1,12 +1,3 @@
        	            	 (map[string][]issue_test.FooId) (len=1) {
        	            	- (string) (len=8) "ptrslice": ([]issue_test.FooId) (len=4) {
        	            	-  (issue_test.FooId) {
        	            	-   Id: (int) 0
        	            	-  },
        	            	-  (issue_test.FooId) {
        	            	-   Id: (int) 0
        	            	-  },
        	            	-  (issue_test.FooId) {
        	            	-   Id: (int) 0
        	            	-  },
        	            	+ (string) (len=8) "ptrslice": ([]issue_test.FooId) (len=1) {
        	            	   (issue_test.FooId) {
        	Test:       	TestUnmarshalErrorInMapSlice`