diff --git a/backend/mirai-console/src/main/kotlin/net/mamoe/mirai/console/data/ValueName.kt b/backend/mirai-console/src/main/kotlin/net/mamoe/mirai/console/data/ValueName.kt
index 9a5694b52..957902e49 100644
--- a/backend/mirai-console/src/main/kotlin/net/mamoe/mirai/console/data/ValueName.kt
+++ b/backend/mirai-console/src/main/kotlin/net/mamoe/mirai/console/data/ValueName.kt
@@ -14,7 +14,6 @@ package net.mamoe.mirai.console.data
  *
  * 例:
  * ```
- * @ValueName("accounts")
  * object AccountPluginData : PluginData by ... {
  *    @ValueName("info")
  *    val map: Map<String, String> by value("a" to "b")
@@ -23,7 +22,7 @@ package net.mamoe.mirai.console.data
  *
  * 将被保存为配置 (YAML 作为示例):
  * ```yaml
- * accounts:
+ * AccountPluginData:
  *   info:
  *     a: b
  * ```
diff --git a/backend/mirai-console/src/main/kotlin/net/mamoe/mirai/console/internal/data/CompositeValueImpl.kt b/backend/mirai-console/src/main/kotlin/net/mamoe/mirai/console/internal/data/CompositeValueImpl.kt
index 10fcfea07..c45d135ab 100644
--- a/backend/mirai-console/src/main/kotlin/net/mamoe/mirai/console/internal/data/CompositeValueImpl.kt
+++ b/backend/mirai-console/src/main/kotlin/net/mamoe/mirai/console/internal/data/CompositeValueImpl.kt
@@ -188,7 +188,8 @@ internal fun <K, V> MutableMap<K, V>.patchImpl(_new: Map<K, V>) {
 }
 
 internal fun <C : MutableCollection<E>, E> C.patchImpl(_new: Collection<E>) {
-    this.retainAll(_new)
+    this.clear()
+    this.addAll(_new)
 }
 
 /**
diff --git a/backend/mirai-console/src/main/kotlin/net/mamoe/mirai/console/internal/data/MultiFilePluginDataStorageImpl.kt b/backend/mirai-console/src/main/kotlin/net/mamoe/mirai/console/internal/data/MultiFilePluginDataStorageImpl.kt
index cd6816c4b..87c39b4db 100644
--- a/backend/mirai-console/src/main/kotlin/net/mamoe/mirai/console/internal/data/MultiFilePluginDataStorageImpl.kt
+++ b/backend/mirai-console/src/main/kotlin/net/mamoe/mirai/console/internal/data/MultiFilePluginDataStorageImpl.kt
@@ -18,6 +18,7 @@ import net.mamoe.mirai.console.util.ConsoleExperimentalAPI
 import net.mamoe.mirai.utils.MiraiLogger
 import net.mamoe.mirai.utils.SilentLogger
 import net.mamoe.mirai.utils.debug
+import net.mamoe.mirai.utils.warning
 import net.mamoe.yamlkt.Yaml
 import java.io.File
 import java.nio.file.Path
@@ -36,6 +37,7 @@ internal open class MultiFilePluginDataStorageImpl(
 
         val text = getPluginDataFile(holder, instance).readText()
         if (text.isNotBlank()) {
+            logger.warning { "Deserializing $text" }
             Yaml.default.decodeFromString(instance.updaterSerializer, text)
         } else {
             this.store(holder, instance) // save an initial copy