IssueTracker

Component used:

- **androix.fragment**: `androidx.fragment:fragment:1.3.6`
- **androix.activity**: `androidx.activity:activity:1.2.4`

Devices/Android versions reproduced on: Samsung Galaxy S10 Lite

**Issue**

When multiple activities are launched sequentially from a fragment using the deprecated API `Fragment.startActivityForResult`, the order of launch is well defined but the calls back to `Fragment.onActivityResult` get messed up when all the started activities `setResult` and finish.

As it can be noticed in the logs below, `ResultActivity1` is started with `requestCode=1111` and  `ResultActivity2` with `requestCode=2222`, but when both activities set result and dismiss, `onActivityResult` is called with `ResultActivity2` but `requestCode` of `ResultActivity1` and the same for `ResultActivity1`.

```
17:17:52.050  E  startActivityForResult: me.jansv.ari.ResultActivity1{requestCode=1111}
17:17:52.187  E  startActivityForResult: me.jansv.ari.ResultActivity2{requestCode=2222}
17:17:57.055  E  onActivityResult: requestCode=1111, resultCode=-1, extras={ResultActivity2=ResultActivity2.value}
17:17:57.055  E  onActivityResult: requestCode=2222, resultCode=-1, extras={ResultActivity1=ResultActivity1.value}
```

**Steps to reproduce**

Using the sample project, click rapidly and in order buttons `Activity 1` and `Activity 2`, then click `Set Result 2` followed by `Set Result 1`.

This is possible in the context of translucent activities that allow click-through or when some delay at starting the first activity allows the click on the second button to trigger.

**Potential cause**

When `Fragment.startActivityForResult` is called, it [register](https://github.com/androidx/androidx/blob/androidx-main/fragment/fragment/src/main/java/androidx/fragment/app/FragmentManager.java#L2821-L2822) in a queue, launch meta which includes the `requestCode` but when is time to dispatch `Fragment.onActivityResult`, is [taken](https://github.com/androidx/androidx/blob/androidx-main/fragment/fragment/src/main/java/androidx/fragment/app/FragmentManager.java#L2684) from the queue, the meta's according launch order, which might not correlate with the intent actually calling `onActivityResult`.

This means that if the state of the queue is something like: `{meta{requestCode=1111}, meta{requestCode=2222}}` for sequential launch of `ResultActivity1`, `ResultActivity2`. If `ResultActivity2` set result first, then, we'll endup with `meta{requestCode=1111}` and `ActivityResult` from `ResultActivity2`.