bug: should check the children of the first parse, not the root.

Signed-off-by: blam <ben@blam.sh>

plugins/scaffolder-backend/src/scaffolder/tasks/NunjucksWorkflowRunner.ts

@@ -114,9 +114,10 @@ export class NunjucksWorkflowRunner implements WorkflowRunner {
   private isSingleTemplateString(input: string) {
     const { parser, nodes } = require('nunjucks');
     const parsed = parser.parse(input, {}, this.nunjucksOptions);
+
     return (
       parsed.children.length === 1 &&
-      !(parsed.children[0] instanceof nodes.TemplateData)
+      !(parsed.children[0]?.children?.[0] instanceof nodes.TemplateData)
     );
   }
 
@@ -147,7 +148,7 @@ export class NunjucksWorkflowRunner implements WorkflowRunner {
               return JSON.parse(templated);
             }
           } catch (ex) {
-            this.options.logger.error(
+            console.error(
               `Failed to parse template string: ${value} with error ${ex.message}`,
             );
           }