:art: Check the validity of the API `moveBlock` parameter `previousID` Fix https://github.com/siyuan-note/siyuan/issues/8007

kernel/api/block_op.go

@@ -55,6 +55,13 @@ func moveBlock(c *gin.Context) {
 		if util.InvalidIDPattern(previousID, ret) {
 			return
 		}
+
+		// Check the validity of the API `moveBlock` parameter `previousID` https://github.com/siyuan-note/siyuan/issues/8007
+		if bt := treenode.GetBlockTree(previousID); nil == bt || "d" == bt.Type {
+			ret.Code = -1
+			ret.Msg = "`previousID` can not be the ID of a document"
+			return
+		}
 	}
 
 	transactions := []*model.Transaction{