kt 优化

mybatis-plus-extension/src/main/kotlin/com/baomidou/mybatisplus/extension/kotlin/KtQueryWrapper.kt

@@ -49,7 +49,7 @@ class KtQueryWrapper<T : Any> : AbstractKtWrapper<T, KtQueryWrapper<T>>, Query<K
         this.initNeed()
     }
 
-    internal constructor(entity: T, entityClass: Class<T>, sqlSelect: SharedString, paramNameSeq: AtomicInteger,
+    internal constructor(entity: T?, entityClass: Class<T>, sqlSelect: SharedString, paramNameSeq: AtomicInteger,
                          paramNameValuePairs: Map<String, Any>, mergeSegments: MergeSegments, columnMap: Map<String, ColumnCache>,
                          lastSql: SharedString, sqlComment: SharedString, sqlFirst: SharedString) {
         this.entity = entity

mybatis-plus-extension/src/main/kotlin/com/baomidou/mybatisplus/extension/kotlin/KtUpdateWrapper.kt

@@ -49,7 +49,7 @@ class KtUpdateWrapper<T : Any> : AbstractKtWrapper<T, KtUpdateWrapper<T>>, Updat
         this.initNeed()
     }
 
-    internal constructor(entity: T, paramNameSeq: AtomicInteger, paramNameValuePairs: Map<String, Any>,
+    internal constructor(entity: T?, paramNameSeq: AtomicInteger, paramNameValuePairs: Map<String, Any>,
                          mergeSegments: MergeSegments, columnMap: Map<String, ColumnCache>,
                          lastSql: SharedString, sqlComment: SharedString, sqlFirst: SharedString) {
         this.entity = entity