Merge pull request #79 from kbss-cvut/fix/fta-fmea-ui-226-fix-reading…

…-fault-event-properties--2

[FIX kbss-cvut/fta-fmea-ui#226] Read fault tree in transaction to enable lazy loading

src/main/java/cz/cvut/kbss/analysis/service/FaultTreeRepositoryService.java

@@ -64,6 +64,7 @@ public void createTree(FaultTree faultTree){
         persist(faultTree);
     }
 
+    @Transactional(readOnly = true)
     @Override
     public FaultTree findRequired(URI id) {
         FaultTree ft = super.findRequired(id);