Change Details

The 'Add Value' sub-form of the 'Edit Statement' allows new values to be added to existing statements. Opening and cancelling the form should not change the current value and should therefore not enable the 'save' button on the form. **Steps to reproduce** - [] Open the 'Edit Statement' form - the 'save' button is disabled - [] Click 'add value' - [] Click 'cancel' - the 'save' button is enabled. **Expected behaviour** - [] The 'save' button on the 'Edit Statement' form is only enabled if there are changes to be saved. **Acceptance Criteria** - [] The 'Add Value' form can be opened and cancelled without the 'save' button on the edit form becoming active. - [] The 'save' button on the 'Edit Statement' form is active if there are actually new values to be added to the statement. - [] Testing is updated as needed