Fix ReferenceOneField empty case handling

Author: djhi

packages/ra-ui-materialui/src/field/ReferenceOneField.tsx

@@ -95,19 +95,15 @@ export const ReferenceOneField = <
         ) : null;
 
     if (
-        !record &&
-        !controllerProps.isPending &&
-        !controllerProps.isPaused &&
-        controllerProps.referenceRecord == null
+        !record ||
+        (!controllerProps.isPending &&
+            !controllerProps.isPaused &&
+            controllerProps.referenceRecord == null)
     ) {
         return empty;
     }
 
-    if (
-        !record &&
-        controllerProps.isPaused &&
-        controllerProps.referenceRecord == null
-    ) {
+    if (controllerProps.isPaused && controllerProps.referenceRecord == null) {
         return offline;
     }