Bug 26597: Fixing the populate of fields when using the REST API route
This attachment correct the populate of fields by using the api mapping.
Now All fields are populated following the selected PrefillGuaranteeField options
Signed-off-by: Sally <sally.healey@cheshiresharedservices.gov.uk> Signed-off-by: Emmi Takkinen <emmi.takkinen@koha-suomi.fi> Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com> Signed-off-by: Katrin Fischer <katrin.fischer@bsz-bw.de>