Fix for #63 - null values in FK field

Author: JohannesJander

pom.xml

@@ -17,7 +17,7 @@
     </scm>
 
     <properties>
-        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>Fix
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
         <java.version>17</java.version>
         <maven.compiler.source>${java.version}</maven.compiler.source>