Fix indentation in unions with refs

[fyhertz]

• Add a query parameter in golden record to test schema with "anyOf": { "$ref": ...}
• Seems to me that there was some over indenting in union_template.pyi
• Mypy is unhappy, because in the union_template.pyi the transform macro from sub templates redefines the property, with a different type. How should I fix this?

[codecov]

Codecov Report

Merging #245 (662e833) into main (fb4787e) will not change coverage.
The diff coverage is n/a.

@@ Coverage Diff @@## main #245 +/- ##
=========================================
Coverage 100.00% 100.00% =========================================
Files 46 46 Lines 1302 1302 =========================================
Hits 1302 1302 

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[dbanty]

I'm pretty sure #241 fixes this same thing. Can you check out main and try it there to make sure?

[fyhertz]

Problem fixed indeed ! We could still benefit from the additional test case, I can rename the commit if you want, or we can close the pr.