Generate schema yaml macro does not retrieve upstream descriptions of versioned models

[PieterBos94]

Describe the bug

When using model with versions upstream of a model, the generate schema yaml cannot retrieve the column descriptions.

Steps to reproduce

Create a model with a v1 and v2 upstream of a model you want to generate a yaml for and set upstream_descriptions=True. It will not grab column descriptions of the upstream model.

Expected results

It grabs the column descriptions of the latest version of the upstream model.

Actual results

It does not give any column descriptions from the upstream versioned model.

System information

The contents of your packages.yml file:
packages:

• package: dbt-labs/codegen
  version: 0.12.1
• package: calogica/dbt_expectations
  version: 0.10.3
• package: dbt-labs/audit_helper
  version: 0.11.0
• package: dbt-labs/dbt_utils
  version: 1.1.1
• package: dbt-labs/dbt_project_evaluator
  version: 0.9.0
• package: dbt-labs/dbt_external_tables
  version: 0.9.0

Which database are you using dbt with?

• postgres
• redshift
• bigquery
• snowflake
• other (specify: ____________)

The output of dbt --version:

dbt cloud on latest version

The operating system you're using:
dbt cloud on latest version

The output of python --version:
dbt cloud on latest version

Are you interested in contributing the fix?

I have limited experience with dbt packages, so no.

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