修复用户归属部门无法修改为空问题

ruoyi-system/src/main/resources/mapper/system/SysUserMapper.xml

@@ -180,7 +180,7 @@ PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
 	<update id="updateUser" parameterType="SysUser">
  		update sys_user
  		<set>
- 			<if test="deptId != null and deptId != 0">dept_id = #{deptId},</if>
+ 			<if test="deptId != 0">dept_id = #{deptId},</if>
  			<if test="nickName != null and nickName != ''">nick_name = #{nickName},</if>
  			<if test="email != null ">email = #{email},</if>
  			<if test="phonenumber != null ">phonenumber = #{phonenumber},</if>