validator not processing quoted identifiers beginning with a space

[DavidUnderdown]

Processing a sample file received from a supplier, they had (probably inadvertently) included spaces at the start of a couple column names (and I wanted to try to get the file to validate without altering the original). The definition of a Quoted Identifier does not say that a space cannot be used at the beginning, so this should work. Error message was "Error: Metadata header, cannot find the column headers - Image crop operator, Image crop operator, Image width, Image width - . (Case sensitive)"

It looks as if leading spaces might be being trimmed in the initial parse.