Label Selected Tasks does not work as expected

**Describe the bug**
Label selected tasks does not correctly work for previously submitted tasks

**To Reproduce**
Steps to reproduce the behavior:
1. Select 10 tasks or so that have already been annotated
2. Click "Label 10 Tasks"
3. The images/tasks shown are not the images/tasks that were selected
4. Clicking "Label Tasks as Displayed returns "No More Tasks Left in Queue"

**Expected behavior**
The images/tasks that were selected should be shown to annotate.

**Screenshots**
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**Environment (please complete the following information):**
- OS: [e.g. iOS]
- Label Studio Version [e.g. 0.8.0]

**Additional context**
Add any other context about the problem here.