Data mapper issue when field name contains '-'

Summary:

Invoking fusion rest api's and passing rest-framework-version. But in mapper, when I drag drop input.rest-framework-version, it throws as eror

Content (please ensure you mask any confidential information):

When the process is submitted, it fails with error - 'Unknown property used in expression: ${input_REST-framework-version}. Cause: Cannot resolve identifier 'input_REST''

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