Incorrect hanling of prerelease in constraints

[nbkolchin]

  v, _ := version.NewVersion("1.1.8-alpha1")
  if fast_check, err := version.NewConstraint(">= 1.1.7"); err == nil {
    if fast_check.Check(v) {
      fmt.Printf("OK: %v >= 1.1.7\n", v)
    } else {
      fmt.Printf("BUG: %v < 1.1.7\n", v)
    }

Constraint check incorrectly returns false, which is obviously a bug.

[Noksa]

Any updates?

[tgross]

I just ran into this today while working on hashicorp/nomad#14821 and I'd forgotten you need to use the Core() method to get the expected results here. See https://go.dev/play/p/Dq_2dmVV7Dg

[nbkolchin]

It is kinda unclear why we should use Core() here.

[Noksa]

I would say It is totally ucnlear