CAMEL-23031: Fix regression with csvFormat initialization (#21535)

Author: graben

components/camel-csv/src/main/java/org/apache/camel/dataformat/csv/CsvDataFormat.java

@@ -104,15 +104,16 @@ public Object unmarshal(Exchange exchange, Object body) throws Exception {
     @Override
     protected void doInit() throws Exception {
         super.doInit();
-        marshaller = marshallerFactory.create(getActiveFormat(), this);
-        unmarshaller = CsvUnmarshaller.create(getActiveFormat(), this);
 
         if (csvFormat == null && format != null) {
             csvFormat = CSVFormat.valueOf(format);
         }
         if (csvFormat == null) {
             csvFormat = CSVFormat.DEFAULT;
         }
+
+        marshaller = marshallerFactory.create(getActiveFormat(), this);
+        unmarshaller = CsvUnmarshaller.create(getActiveFormat(), this);
     }
 
     @Override
@@ -229,6 +230,10 @@ public CSVFormat getCsvFormat() {
         return csvFormat;
     }
 
+    public void setCsvFormat(CSVFormat csvFormat) {
+        this.csvFormat = csvFormat;
+    }
+
     public String getFormat() {
         return format;
     }