Data source 'ibm_is_subnet' causes Terraform crash when subnet not found

[jaywcarman]

Terraform Version

Terraform v0.12.20

• provider.ibm v1.14.0

Affected Resource(s)

• ibm_is_subnet

Terraform Configuration Files

provider "ibm" {
    version          = ">= 1.14.0"
    generation       = "2"
    region           = "us-south"
}
data ibm_is_subnet "thissubnetdoesnotexist" {
  name = "this_subnet_does_not_exist"
}

Debug Output

https://gist.github.com/jaywcarman/5219f64e5248bfcc2d2953e1cfe1e783

Panic Output

https://gist.github.com/jaywcarman/5b94252823caa3a25a4c7957b822dd30