duplicate join clause when using scan() + count(), find() + count() is normal

[Cirooo]

Description

        var count int64
	var tempList []int
	test := global.GetTransaction().Table(e.TableName() + " as sr").Joins("left join table_s_m sm on sr.s_id = sm.s_id ")
	err2 := test.Distinct("sr.s_id ").Order("sr.s_id desc").Offset((current - 1) * pageSize).Limit(pageSize).Find(&tempList).Offset(-1).Limit(-1).Count(&count).Error

In the example above, it is Find(), and it's normal, but it fails if I replace it with Scan() and it would be this SQL statement:
SELECT COUNT(DISTINCT(sr.s_id)) FROM table_s_r as sr left join table_s_m sm on sr.s_id= sm.s_id left join table_s_m sm on sr.s_id= sm.s_id
And you can notice that there's a duplicate 'left join' in it.
Then mysql throws an error: [1066] [42000]: Not unique table/alias: 'sm'

[github-actions]

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