fix(xo-web/new-network): PIF should not be required (#4010)

Introduced by 7a2a88b7ad

Requiring a PIF prevented from creating private networks

CHANGELOG.unreleased.md

@@ -4,6 +4,8 @@
 
 ### Bug fixes
 
+- [New network] PIF was wrongly required which prevented from creating a private network (PR [#4010](https://github.com/vatesfr/xen-orchestra/pull/4010))
+
 ### Released packages
 
 - xo-server v5.37.0

packages/xo-web/src/xo-app/new/network/index.js

@@ -92,7 +92,7 @@ const NewNetwork = decorate([
             description,
             mtu,
             name,
-            pif: pif.id,
+            pif: pif == null ? undefined : pif.id,
             pool: pool.id,
             vlan,
           })
@@ -160,7 +160,7 @@ const NewNetwork = decorate([
                       multi={bonded}
                       onChange={effects.onChangePif}
                       predicate={pifPredicate}
-                      required
+                      required={bonded}
                       value={bonded ? pifs : pif}
                     />
                     <label>{_('newNetworkName')}</label>