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## Current use version？
#### 当前使用的版本是多少？

```
3.11.2
```

## Will this problem occur in demo?
#### Demo能否复现这问题？

```
不能
```

## Describe the problem or provide an error log？
#### 描述问题或提供错误log？

```
Fatal Exception: java.lang.NullPointerException
Attempt to invoke virtual method 'void com.luck.picture.lib.widget.BottomNavBar.setOriginalCheck()' on a null object reference
com.luck.picture.lib.PictureSelectorPreviewFragment.onCheckOriginalChange (PictureSelectorPreviewFragment.java:240)
com.luck.picture.lib.basic.PictureCommonFragment.sendSelectedOriginalChangeEvent (PictureCommonFragment.java:808)
com.luck.picture.lib.PictureSelectorFragment$8.onCheckOriginalChange (PictureSelectorFragment.java:601)
com.luck.picture.lib.widget.BottomNavBar$1.onCheckedChanged (BottomNavBar.java:67)
android.widget.CompoundButton.setChecked (CompoundButton.java:222)

com.android.internal.os.ZygoteInit.main (ZygoteInit.java:936)
```

Start with the stack trace in PictureSelectorPreviewFragment.java:240 and trace the original-selection callback through PictureCommonFragment.java:808, PictureSelectorFragment.java:601, and BottomNavBar.java:67. Reproduce the crash outside the demo if possible by changing the original-selection state in preview, then verify that this interaction no longer throws a NullPointerException.

Written by the indexing model from the issue text.