Unable to parse measure template after upgrade

[chubert-sb]

After upgrading from 0.4.1 to 0.4.2, there seems to be an issue parsing the Measure template. We've been using the LiquidEngine to parse the measure. After upgrading, we get the error below:

org.hl7.fhir.exceptions.FHIRException: Script hr-script: Script hr-script: Unknown flow control statement assign counter = 1 at org.hl7.fhir.r5.utils.LiquidEngine$LiquidParser.parseList(LiquidEngine.java:522) ~[org.hl7.fhir.r5-6.0.1.jar:na] at org.hl7.fhir.r5.utils.LiquidEngine$LiquidParser.parseIf(LiquidEngine.java:561) ~[org.hl7.fhir.r5-6.0.1.jar:na] at org.hl7.fhir.r5.utils.LiquidEngine$LiquidParser.parseList(LiquidEngine.java:507) ~[org.hl7.fhir.r5-6.0.1.jar:na]

[chubert-sb]

To help it looks like it might have something to do with the line added in the Measure.liquid at line 372