Fix entity select component for current customer

ui-ngx/src/app/shared/components/entity/entity-select.component.ts

@@ -122,6 +122,9 @@ export class EntitySelectComponent implements ControlValueAccessor, OnInit, Afte
 
   writeValue(value: EntityId | null): void {
     if (value != null) {
+      if (value.id === NULL_UUID) {
+        value.id = null;
+      }
       this.modelValue = value;
       this.entitySelectFormGroup.get('entityType').patchValue(value.entityType, {emitEvent: true});
       this.entitySelectFormGroup.get('entityId').patchValue(value, {emitEvent: true});
@@ -146,6 +149,8 @@ export class EntitySelectComponent implements ControlValueAccessor, OnInit, Afte
         || this.modelValue.entityType === AliasEntityType.CURRENT_USER
         || this.modelValue.entityType === AliasEntityType.CURRENT_USER_OWNER) {
         this.modelValue.id = NULL_UUID;
+      } else if (this.modelValue.entityType === AliasEntityType.CURRENT_CUSTOMER && !this.modelValue.id) {
+        this.modelValue.id = NULL_UUID;
       }
 
       if (this.modelValue.entityType && this.modelValue.id) {