Weird behavior when setting secondary orchard

[mgaseta]

Describe the Bug
After selecting the first orchard and making a change on the table in step 5, clicking the button to add a secondary will clean the table without any warning for the user.

Expected Behaviour
When trying to add a new orchard the user needs to warned about what will happen with the table on step 5 OR the table should not change until the orchard is selected.

Actual Behaviour
Table in step 5 being cleaned after the "Add secondary orchard" button is clicked withou informing the user

Steps To Reproduce
Steps to reproduce the behaviour:

1. On the seedlot registration screen, go to step 4
2. Select a primary orchard
3. Go to step 5
4. Add any value on the parent tree table
5. Go back to step 4
6. Click the "Add additional orchard" button
7. Go back to step 5
8. The parent tree table is empty

Additional context
This problem was first identified on issue #1594