add comment

paparazzi/src/main/java/app/cash/paparazzi/Paparazzi.kt

@@ -351,14 +351,16 @@ class Paparazzi @JvmOverloads constructor(
     timeNanos: Long,
     block: () -> Unit
   ) {
-    val frameNanos = timeNanos + TIME_OFFSET_NANOS
+    val frameNanos = TIME_OFFSET_NANOS + timeNanos
+
     // System_Delegate.nanoTime() is nanoTime - previousNanoTime + sChoreographerTime.
     // Because of that setNanosTime needs to be called with 0 first so that the previous time will be 0 for the actual
     // call. sChoreographerTime does not matter because doFrame which modifies it is not called by Paparazzi.
     System_Delegate.setNanosTime(0L)
     // Execute the block at the requested time.
     System_Delegate.setNanosTime(frameNanos)
 
+    // should happen before doCallbacks so that compose re-composition happens
     executeHandlerCallbacks()
     // 1 is the only callbackType allowed by doCallbacks
     Choreographer_Delegate.doCallbacks(Choreographer.getInstance(), 1, frameNanos)