when value set to null should delete custom field value record#18

FishChen1202 merged 1 commit intomainOnrampLab/laravel-custom-fields:mainfrom

16-fix-not-require-field-cant-store-with-null-valueOnrampLab/laravel-custom-fields:16-fix-not-require-field-cant-store-with-null-valueCopy head branch name to clipboard