Liquid templates ContentItems property names became case insensitive

[SzymonSel]

After upgrading from 1.9 to 2.0 we've noticed some of our liquid templates failing with a the error

ArgumentException: An item with the same key has already been added. Key: Camelcase (Parameter 'propertyName')

This happend because we are calling {{ field.MyProperty.CamelCase.Text }}

This just so happens that in some time during design and development we misstyped the name of the field and later changed it from Camelcase to CamelCase which left us with some harmless rubish in the JSON content... well at least until we upgraded to OC 2.0

{"CamelCase":{"Text":null},"Camelcase":{"Text":null}}

Is this switch, to case-insensitiveness was done intentionally?