Merge pull request #4540 from inception-project/bugfix/4538-Lazy-deta…

…ils-and-selecting-annotations-my-break-after-opening-a-read-only-document-and-not-performing-actions-for-a-short-time

#4538 - Lazy details and selecting annotations my break after opening a read-only document and not performing actions for a short time

inception/inception-ui-annotation/src/main/java/de/tudarmstadt/ukp/clarin/webanno/ui/annotation/AnnotationPage.java

@@ -20,6 +20,7 @@
 import static de.tudarmstadt.ukp.clarin.webanno.api.annotation.page.AnnotationEditorState.KEY_EDITOR_STATE;
 import static de.tudarmstadt.ukp.clarin.webanno.api.annotation.page.AnnotationPageBase.PAGE_PARAM_DOCUMENT;
 import static de.tudarmstadt.ukp.clarin.webanno.api.casstorage.CasUpgradeMode.FORCE_CAS_UPGRADE;
+import static de.tudarmstadt.ukp.clarin.webanno.api.casstorage.CasUpgradeMode.NO_CAS_UPGRADE;
 import static de.tudarmstadt.ukp.clarin.webanno.model.AnnotationDocumentState.IGNORE;
 import static de.tudarmstadt.ukp.clarin.webanno.model.AnnotationDocumentStateChangeFlag.EXPLICIT_ANNOTATOR_USER_ACTION;
 import static de.tudarmstadt.ukp.clarin.webanno.model.PermissionLevel.ANNOTATOR;
@@ -457,12 +458,13 @@ protected void actionLoadDocument(AjaxRequestTarget aTarget, int aFocus)
                     .createOrGetAnnotationDocument(state.getDocument(), state.getUser());
             var stateBeforeOpening = annotationDocument.getState();
 
+            var editable = isEditable();
+
             // Read the CAS
             // Update the annotation document CAS
             var editorCas = documentService.readAnnotationCas(annotationDocument,
-                    FORCE_CAS_UPGRADE);
+                    editable ? FORCE_CAS_UPGRADE : NO_CAS_UPGRADE);
 
-            var editable = isEditable();
             applicationEventPublisherHolder.get()
                     .publishEvent(new BeforeDocumentOpenedEvent(this, editorCas,
                             getModelObject().getDocument(),