小米 Note 2 相册 “Pictures”中的图片无法显示

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手机信息：
小米 Note 2
MIUI11.0.2
Android 8.0.0

SDK版本：
2.6.0

出现问题：
调用相册，只显示“Camera”目录图片，“Pictures”中的图片无法显示

调用代理：
```
PictureSelector.create(this)
.openGallery(PictureMimeType.ofImage())
.loadImageEngine(GlideEngine.createGlideEngine()) // 请参考Demo GlideEngine.java
.maxSelectNum(1)
.selectionMode(PictureConfig.SINGLE)
.compress(true)
.isCamera(false)
.forResult(new OnResultCallbackListener() {
@Override
public void onResult(List result) {

}

@Override
public void onCancel() {

}
});
```

Start with the PictureSelector.create(this) gallery flow and reproduce the issue on the listed Xiaomi Note 2, MIUI 11.0.2, Android 8.0.0, and SDK 2.6.0 setup. Compare the handling of the Camera and Pictures directories; done means images in Pictures appear in the gallery alongside Camera images.

Written by the indexing model from the issue text.