send setRecordingState false to CameraOne only if the recording is really stoping

app/src/main/kotlin/com/simplemobiletools/camera/views/PreviewCameraOne.kt

@@ -849,8 +849,10 @@ class PreviewCameraOne : ViewGroup, SurfaceHolder.Callback, MyPreview {
         }
 
         mRecorder = null
-        mIsRecording = false
+        if (mIsRecording) {
             mActivity!!.setRecordingState(false)
+        }
+        mIsRecording = false
 
         val file = File(mCurrVideoPath)
         if (file.exists() && file.length() == 0L) {