panic in combine

[docmerlin]

panic: runtime error: slice bounds out of range [:1] with capacity 0

goroutine 102 [running]: github.com/influxdata/kapacitor.(*combineBuffer).addPoint(0xc0004778c0, 0x7fa066699138, 0xc0009dbe60, 0x7fa066699138, 0xc0009dbe60) /root/go/src/github.com/influxdata/kapacitor/combine.go:129 +0x29e github.com/influxdata/kapacitor.(*combineBuffer).BatchPoint(0xc0004778c0, 0x26cb6e0, 0xc0006bd830, 0x0, 0x0) /root/go/src/github.com/influxdata/kapacitor/combine.go:99 +0xc7 github.com/influxdata/kapacitor/edge.(*groupedConsumer).BatchPoint(0xc00090e000, 0x26cb6e0, 0xc0006bd830, 0x26cb6e0, 0xc0006bd830) /root/go/src/github.com/influxdata/kapacitor/edge/grouped.go:84 +0x51 github.com/influxdata/kapacitor/edge.(*consumer).Consume(0xc000922000, 0x0, 0x0) /root/go/src/github.com/influxdata/kapacitor/edge/consumer.go:49 +0x1bb github.com/influxdata/kapacitor/edge.(*groupedConsumer).Consume(0xc00090e000, 0x23c48ca, 0x13) /root/go/src/github.com/influxdata/kapacitor/edge/grouped.go:51 +0x33 github.com/influxdata/kapacitor.(*CombineNode).runCombine(0xc0001ee140, 0x0, 0x0, 0x0, 0x0, 0x0) /root/go/src/github.com/influxdata/kapacitor/combine.go:53 +0x1bb github.com/influxdata/kapacitor.(*node).start.func1(0xc0001ee140, 0x0, 0x0, 0x0) /root/go/src/github.com/influxdata/kapacitor/node.go:186 +0x89 created by github.com/influxdata/kapacitor.(*node).start /root/go/src/github.com/influxdata/kapacitor/node.go:164 +0x5d