fix tag ignored issue

Signed-off-by: jason yang <jasonyangshadow@gmail.com>

internal/app/wwctl/node/set/main_test.go

@@ -414,3 +414,69 @@ nodes:
 		run_test(t, tt)
 	}
 }
+
+func Test_Node_Add(t *testing.T) {
+	tests := []test_description{
+		{
+			args:    []string{"--tagadd=email=node", "n01"},
+			wantErr: false,
+			stdout:  "",
+			inDB: `WW_INTERNAL: 43
+nodeprofiles:
+  default:
+    comment: testit
+    tags:
+      email: profile
+nodes:
+  n01:
+    profiles:
+    - default`,
+			outDb: `WW_INTERNAL: 43
+nodeprofiles:
+  default:
+    comment: testit
+    tags:
+      email: profile
+nodes:
+  n01:
+    profiles:
+    - default
+    tags:
+      email: node
+`},
+		{
+			args:    []string{"--tagadd=newtag=newval", "n01"},
+			wantErr: false,
+			stdout:  "",
+			inDB: `WW_INTERNAL: 43
+nodeprofiles:
+  default:
+    comment: testit
+    tags:
+      email: profile
+nodes:
+  n01:
+    profiles:
+    - default
+    tags:
+      email: node`,
+			outDb: `WW_INTERNAL: 43
+nodeprofiles:
+  default:
+    comment: testit
+    tags:
+      email: profile
+nodes:
+  n01:
+    profiles:
+    - default
+    tags:
+      email: node
+      newtag: newval
+`},
+	}
+
+	for _, tt := range tests {
+		run_test(t, tt)
+	}
+}

internal/pkg/node/transformers.go

@@ -206,6 +206,11 @@ func recursiveSetter(source, target interface{}, nameArg string, setter func(*En
 								newEntr := new(Entry)
 								setter(newEntr, sourceIter.Value().String(), nameArg)
 								targetValue.Elem().Field(i).SetMapIndex(sourceIter.Key(), reflect.ValueOf(newEntr))
+							} else {
+								// update the entry with latest value
+								if entry, ok := targetValue.Elem().Field(i).MapIndex(sourceIter.Key()).Interface().(*Entry); ok {
+									setter(entry, sourceIter.Value().String(), nameArg)
+								}
 							}
 						}
 					} else {