[DSL/YAML generator] Consider item pattern formatter even without label

Items without label but with a formatter is now properly considered when generating DSL and YAML syntax.
Example: Number SceneItem "[MAP(scene.map):%s]"
Bug was reported on the community forum.

Signed-off-by: Laurent Garnier <[email protected]>

Author: lolodomo

bundles/org.openhab.core.model.item/src/org/openhab/core/model/item/internal/fileconverter/DslItemFileConverter.java

@@ -139,16 +139,18 @@ private ModelItem buildModelItem(Item item, List<Metadata> channelLinks, List<Me
         String label = item.getLabel();
         boolean patternInjected = false;
         String defaultPattern = getDefaultStatePattern(item);
-        if (label != null && !label.isEmpty()) {
-            String patterToInject = stateFormatter != null && !stateFormatter.equals(defaultPattern) ? stateFormatter
-                    : null;
-            if (patterToInject != null) {
-                // Inject the pattern in the label
-                patternInjected = true;
+        String patterToInject = stateFormatter != null && !stateFormatter.equals(defaultPattern) ? stateFormatter
+                : null;
+        if (patterToInject != null) {
+            // Inject the pattern in the label
+            patternInjected = true;
+            if (label != null && !label.isEmpty()) {
                 model.setLabel("%s [%s]".formatted(label, patterToInject));
             } else {
-                model.setLabel(label);
+                model.setLabel("[%s]".formatted(patterToInject));
             }
+        } else {
+            model.setLabel(label);
         }
 
         String category = item.getCategory();

bundles/org.openhab.core.model.yaml/src/main/java/org/openhab/core/model/yaml/internal/items/fileconverter/YamlItemFileConverter.java

@@ -114,11 +114,10 @@ private YamlItemDTO buildItemDTO(Item item, List<Metadata> channelLinks, List<Me
         String defaultPattern = getDefaultStatePattern(item);
         if (label != null && !label.isEmpty()) {
             dto.label = item.getLabel();
-            String patterToSet = stateFormatter != null && !stateFormatter.equals(defaultPattern) ? stateFormatter
-                    : null;
-            dto.format = patterToSet;
-            patternSet = patterToSet != null;
         }
+        String patterToSet = stateFormatter != null && !stateFormatter.equals(defaultPattern) ? stateFormatter : null;
+        dto.format = patterToSet;
+        patternSet = patterToSet != null;
 
         dto.type = item.getType();
         String mainType = ItemUtil.getMainItemType(item.getType());