- Support 'allow.empty.filter', defaulting to 'yes', but if 'no' disallows the combination of a write command and an empty filter. Ordinarily this is just a warning that requires confirmation (thanks to Lee Lieske).
- Support 'allow.empty.filter', defaulting to 'yes', but if 'no' disallows the combination of a write command and an empty filter. Ordinarily this is just a warning that requires confirmation (thanks to Lee Lieske).