Issue #3205865 by kksandr: Fixed adding entity ID when label is optional

Closes #3205865

config/schema/auto_entitylabel.schema.yml

@@ -8,6 +8,9 @@ auto_entitylabel.settings.*:
     pattern:
       type: string
       label: 'Pattern for the label'
+    enforce_resave:
+      type: boolean
+      label: 'Generate by re-saving'
     escape:
       type: boolean
       label: 'Remove special characters'