### Affected components - [x] Fabric modules - [ ] FAST - [ ] Blueprints - [ ] Other ### The problem When I provide a prefix as a default, I can' have a project without prefix provided. Because we are using [coalesce](https://github.com/GoogleCloudPlatform/cloud-foundation-fabric/blob/77cdcafd3ca9af3e776c19832e32800d6cbe6ea3/modules/project-factory/projects-defaults.tf#L81-L87), If I set `prefix: ""` or `prefix: null` it will go to the `local.data_defaults.defaults.prefix` ### Release version master ### Terraform version 1.14.2. ### Steps to reproduce Use following yaml for project definition: ``` name: test prefix: "" ``` ### Expected behavior Create project test ### Actual behavior Creates project ${prefix}-test ### Additional context _No response_