Allow booleanTransformer to be used as a certificate handlebar template transformer (#9632)

Author: euanmillar

CHANGELOG.md

@@ -6,6 +6,7 @@
 
 ### Bug fixes
 
+- Allow booleanTransformer to be used as a certificate handlebar template transformer [#9631](https://github.com/opencrvs/opencrvs-core/issues/9631)
 - Fix international to local number conversion from failing if the number was already local [#9634](https://github.com/opencrvs/opencrvs-core/issues/9634)
 
 ## [1.7.2](https://github.com/opencrvs/opencrvs-core/compare/v1.7.1...v1.7.2)

packages/client/src/forms/register/mappings/query/field-mappings.ts

@@ -600,6 +600,9 @@ export const booleanTransformer = (
   sectionId: SectionId,
   field: IFormField
 ) => {
+  if (!transformedData[sectionId]) {
+    transformedData[sectionId] = {}
+  }
   // graphql boolean ignored unless forced like this
   if (queryData && queryData[sectionId] && field && field.name) {
     transformedData[sectionId][field.name] = queryData[sectionId][field.name]