ACM ConfigurationPolicy object-templates-raw fails with "yaml: line X: did not find expected key" when using hub templates with multiline JSON ConfigMap data

Issue

• ConfigurationPolicy with object-templates-raw using hub templates fails with error: "failed to convert the resolved template to JSON: yaml: line X: did not find expected key"
• Policy works correctly when using direct ConfigMap access on single cluster but fails when using hub templates across managed clusters
• Hub template processing corrupts multiline JSON strings from ConfigMap causing template parsing failures
• Error occurs specifically when ConfigMap contains multiline JSON data accessed via fromConfigMap function in hub templates
• PolicyGenerator cannot process object-templates-raw with malformed template syntax
• Commonly occurs when migrating from single-cluster policies to hub-managed policies