Hello,

Encountered an issue while running test code, getting data race as following

[2022-02-11T13:11:38.067Z] WARNING: DATA RACE [2022-02-11T13:11:38.067Z] Read at 0x00c00038d6e0 by goroutine 75: [2022-02-11T13:11:38.067Z] runtime.mapaccess2_faststr() [2022-02-11T13:11:38.067Z] /usr/local/go/src/runtime/map_faststr.go:107 +0x0 [2022-02-11T13:11:38.067Z] github.com/jinzhu/gorm.newDialect() [2022-02-11T13:11:38.067Z] /home/jenkins/workspace//vendor/github.com/jinzhu/gorm/dialect.go:63 +0x87 [2022-02-11T13:11:38.067Z] github.com/jinzhu/gorm.(DB).clone() [2022-02-11T13:11:38.067Z] /home/jenkins/workspace//vendor/github.com/jinzhu/gorm/main.go:853 +0xba [2022-02-11T13:11:38.067Z] github.com/jinzhu/gorm.(DB).NewScope() [2022-02-11T13:11:38.067Z] /home/jenkins/workspace//vendor/github.com/jinzhu/gorm/main.go:204 +0x44 [2022-02-11T13:11:38.067Z] github.com/jinzhu/gorm.(DB).Find() [2022-02-11T13:11:38.068Z] /home/jenkins/workspace//vendor/github.com/jinzhu/gorm/main.go:354 +0x84 [2022-02-11T13:11:38.068Z] /store.(DBClient).Find()

Previous write at 0x00c00038d6e0 by goroutine 289: [2022-02-11T13:11:38.068Z] runtime.mapassign_faststr() [2022-02-11T13:11:38.068Z] /usr/local/go/src/runtime/map_faststr.go:202 +0x0 [2022-02-11T13:11:38.068Z] github.com/jinzhu/gorm.RegisterDialect() [2022-02-11T13:11:38.068Z] /home/jenkins/workspace//vendor/github.com/jinzhu/gorm/dialect.go:77 +0x4ee

The register dialect is happening as below code snippet

d, ok := gorm.GetDialect("mysql")
if !ok {
    return nil, gerror.New(GormGetDialectError, "Failed to get Gorm dialect \"mysql\"")
}

gorm.RegisterDialect(driverName, d)

Please let me know, if any more input is needed.

Comment From: github-actions[bot]

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Comment From: jinzhu

this should only be called once, doesn't expect goroutine safe.