Missing Indentation on data load

<changeSet author="build" id="v3"  runOnChange="true">
    <loadData tableName="RRC"
              file="changelog/v3.0/lib/rrc.dsv"
              separator="|"
              quotchar="~" >
    </loadData>
</changeSet>

Sample rrc.dev file:

~ID~|~EXPRESSION~|~TYPE~
1|~evaluate Matched using {
    // Map Group
    def result = lookup "PRO_CODE", using $TABLE
    if (result) {
        // Use ASC Code to lookup appropriate rate, if not found line will not be priced
        def rate = lookup "CODE", result.CODE using $TABLE
        if (rate) {
            Amount = rate.RATE
        }
    }
    // If use default pricing
    else {
        Amount = Charges * $PERCENT
    }
}~|~FEE_SCHEDULE

After data load the groovy expression is like below:
evaluate Matched using {
// Map Group
def result = lookup "PRO_CODE", using $TABLE
if (result) {
// Use ASC Code to lookup appropriate rate, if not found line will not be priced
def rate = lookup "CODE", result.CODE using $TABLE
if (rate) {
Amount = rate.RATE
}
}
// If Procedure Code cannot be mapped, use default pricing
else {
Amount = Charges * $PERCENT
}
}