diff --git a/kernel/model/ai.go b/kernel/model/ai.go
index 0cdc03e56..85757f7de 100644
--- a/kernel/model/ai.go
+++ b/kernel/model/ai.go
@@ -48,6 +48,12 @@ func ChatGPTWithAction(ids []string, action string) (ret string) {
 var cachedContextMsg []string
 
 func chatGPT(msg string, cloud bool) (ret string) {
+	if "Clear context" == strings.TrimSpace(msg) {
+		// AI clear context action https://github.com/siyuan-note/siyuan/issues/10255
+		cachedContextMsg = nil
+		return
+	}
+
 	ret, retCtxMsgs, err := chatGPTContinueWrite(msg, cachedContextMsg, cloud)
 	if nil != err {
 		return
@@ -58,6 +64,12 @@ func chatGPT(msg string, cloud bool) (ret string) {
 
 func chatGPTWithAction(msg string, action string, cloud bool) (ret string) {
 	action = strings.TrimSpace(action)
+	if "Clear context" == action {
+		// AI clear context action https://github.com/siyuan-note/siyuan/issues/10255
+		cachedContextMsg = nil
+		return
+	}
+
 	if "" != action {
 		msg = action + ":\n\n" + msg
 	}
diff --git a/kernel/model/attribute_view.go b/kernel/model/attribute_view.go
index 29b61923a..4c41ae0cd 100644
--- a/kernel/model/attribute_view.go
+++ b/kernel/model/attribute_view.go
@@ -2432,6 +2432,14 @@ func UpdateAttributeViewCell(tx *Transaction, avID, keyID, rowID, cellID string,
 	if err = gulu.JSON.UnmarshalJSON(data, &val); nil != err {
 		return
 	}
+
+	if av.KeyTypeNumber == val.Type {
+		if nil != val.Number && !val.Number.IsNotEmpty {
+			// 删除内容为空值
+			val.Number.Content = 0
+		}
+	}
+
 	relationChangeMode := 0 // 0：不变（仅排序），1：增加，2：减少
 	if av.KeyTypeRelation == val.Type {
 		// 关联列得 content 是自动渲染的，所以不需要保存