Selecting another model when creating a training process does not deselect the model version

1. Open any project.
2. Go to Actions → Train a model.
3. Select any model.
4. Select any model version in that model.
5. Select another model.
6. The model version, which now belongs to a different model, is still selected.
7. Configure everything else and click on Start training.
8. 
9. Cry.

Note that there already is some code supposed to deselect, but it doesn't work.