Alexander A. Klimov ed5a9ea103 Downtime: enforce positive duration
A negative duration would crash Icinga DB and doesn't make sense. Existing
Downtimes with a so small duration disappear immediately - can't be broken.
2025-04-29 11:21:30 +02:00
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2025-04-23 09:13:04 +02:00
2025-03-12 11:53:30 +01:00
2025-04-23 15:18:06 +02:00