Demonstrate bug when removing a trigger in terraform 0.8.5

trigger-remove-bug.sh

cat - > main.tf <<"EOF"
resource "null_resource" "test" {
  triggers {
    run_every_time = "${uuid()}"
  }
  provisioner "local-exec" {
    command = "echo this is a test"
  }
}
EOF
cat main.tf
terraform apply
sed -i .bak '2,4d' main.tf
terraform apply
#### At this point terraform crashes with the following error:
#Error applying plan:
#
#1 error(s) occurred:
#
#* null_resource.test: diffs didn't match during apply. This is a bug with Terraform and should be reported as a GitHub Issue.
#
#Please include the following information in your report:
#
#    Terraform Version: 0.8.5
#    Resource ID: null_resource.test
#    Mismatch reason: diff RequiresNew; old: true, new: false
#    Diff One (usually from plan): *terraform.InstanceDiff{mu:sync.Mutex{state:0, sema:0x0}, Attributes:map[string]*terraform.ResourceAttrDiff{"triggers.%":*terraform.ResourceAttrDiff{Old:"1", New:"0", NewComputed:false, NewRemoved:false, NewExtra:interface {}(nil), RequiresNew:true, Sensitive:false, Type:0x0}, "triggers.run_every_time":*terraform.ResourceAttrDiff{Old:"49d5760b-1822-d153-610a-eeacfcfc0d54", New:"", NewComputed:false, NewRemoved:true, NewExtra:interface {}(nil), RequiresNew:true, Sensitive:false, Type:0x0}}, Destroy:false, DestroyDeposed:false, DestroyTainted:false}
#    Diff Two (usually from apply): *terraform.InstanceDiff{mu:sync.Mutex{state:0, sema:0x0}, Attributes:map[string]*terraform.ResourceAttrDiff{}, Destroy:false, DestroyDeposed:false, DestroyTainted:false}
#
#Also include as much context as you can about your config, state, and the steps you performed to trigger this error.