Preserve workflow SVG if no changes are transmitted

kitodo · Nov 5, 2024 · 3828ab6 · 3828ab6
1 parent 3d32ea1
commit 3828ab6
Showing 1 changed file with 4 additions and 2 deletions.
diff --git a/Kitodo/src/main/java/org/kitodo/production/forms/WorkflowForm.java b/Kitodo/src/main/java/org/kitodo/production/forms/WorkflowForm.java
@@ -270,8 +270,10 @@ private boolean saveFiles() throws IOException, WorkflowException {
 
         xmlDiagram = requestParameterMap.get("editForm:workflowTabView:xmlDiagram");
         if (Objects.nonNull(xmlDiagram)) {
-            svgDiagram = StringUtils.substringAfter(xmlDiagram, "kitodo-diagram-separator");
-            xmlDiagram = StringUtils.substringBefore(xmlDiagram, "kitodo-diagram-separator");
+            if (xmlDiagram.contains("kitodo-diagram-separator")) {
+                svgDiagram = StringUtils.substringAfter(xmlDiagram, "kitodo-diagram-separator");
+                xmlDiagram = StringUtils.substringBefore(xmlDiagram, "kitodo-diagram-separator");
+            }
 
             Reader reader = new Reader(new ByteArrayInputStream(xmlDiagram.getBytes(StandardCharsets.UTF_8)));
             reader.validateWorkflowTasks();