conflicts with existing children in path

[nicolascamilo]

• With issues:
  • Use the search tool before opening a new issue.
  • Please provide source code and commit sha if you found a bug.
  • Review existing issues and provide feedback or react to them.

Description

Receiving "panic: wildcard route ':id' conflicts with existing children in path '/users/:id'" error

How to reproduce

	user := r.Group("/users")
	{
		user.POST("/", ur.SignUp)
		user.POST("/login", l.Login)
		user.GET("/sendconfirmationemail/:userId", rc.SendConfirmationEmail)
		user.GET("/:id", lc.GetUserByUserId)
		user.GET("/confirmemail", rc.ConfirmEmail)
		user.GET("/resendconfirmationemail", rc.ResendEmailConfirmation)
		user.GET("/forgotusername", rc.ForgotUsername)
		user.GET("/sendpasswordreset", rc.SendPasswordReset)
		user.POST("/confirmpasswordreset", rc.ConfirmPasswordReset)
	}

Expectations

Somewthing working

Actual result

wildcard error

Environment

• go version: 1.13.18
• gin version (or commit ref): 1.5.0
• operating system: windows

[appleboy]

See #2016 (comment)