panic and I'm not sure how I trigged it.

[jrwren]

I don't know how I got this.

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

goroutine 19 [running]:
github.com/chzyer/readline.(*RuneBuffer).RuneSlice(0x1400030fb80, 0x1)
/Users/jawren/go/pkg/mod/github.com/chzyer/[email protected]/runebuf.go:111 +0x22c
github.com/chzyer/readline.(*opCompleter).CompleteRefresh(0x140003624d0)
/Users/jawren/go/pkg/mod/github.com/chzyer/[email protected]/complete.go:201 +0xc0
github.com/chzyer/readline.(*Operation).ioloop(0x140003623f0)
/Users/jawren/go/pkg/mod/github.com/chzyer/[email protected]/operation.go:357 +0x1600
created by github.com/chzyer/readline.NewOperation in goroutine 1
/Users/jawren/go/pkg/mod/github.com/chzyer/[email protected]/operation.go:88 +0x2c4

I couldn't reproduce, but maybe there is something obvious in code?