Error reading workspace when the remote workspace has the terraform version set to a constraint

[kpenaseveriche]

go-tfe version

The version used in terraform 1.9.8:

1.58.0

Description

When running commands that call workspace#Read, like terraform untaint (given that the current project is configured to use a remote workspace). If the remote TFE workspace has a version constraint set on the terraform-version field (which is supported as documented in the API docs). It produces an error about a malformed version.

Error: Error looking up workspace

Invalid Terraform version: Malformed version: ~> 1.6.0

Testing plan

• Create a TFE workspace with a version constraint
• Set up a project configured with that workspace as the backend
• Apply a plan such that a resource exists
• Run terraform untaint <resource name>

Expected Behavior

Command edits the remote state.

Actual Behavior

Error looking up workspace

Additional Context

In our use-case, the remote workspace was created via the API, not the UI