Error disabling authentication regulation

[ViRb3]

From the template:

# Configuration of the authentication regulation mechanism.
#
# This mechanism prevents attackers from brute forcing the first factor.
# It bans the user if too many attempts are done in a short period of
# time.
regulation:
  # The number of failed login attempts before user is banned.
  # Set it to 0 to disable regulation.
  max_retries: 3

However, changing max_retries to 0 results in an error:

panic: runtime error: index out of range [0] with length 0
goroutine 35 [running]:
github.com/authelia/authelia/internal/regulation.(*Regulator).Regulate(0x400026ef40, 0x400036c338, 0x6, 0x0, 0x0, 0x0, 0x0, 0x0)
        github.com/authelia/authelia@/internal/regulation/regulator.go:75 +0x3cc
github.com/authelia/authelia/internal/handlers.FirstFactorPost(0x400039e000)
        github.com/authelia/authelia@/internal/handlers/handler_firstfactor.go:25 +0x90
github.com/authelia/authelia/internal/middlewares.AutheliaMiddleware.func1.1(0x400037e000)
        github.com/authelia/authelia@/internal/middlewares/authelia_context.go:46 +0x114
github.com/fasthttp/router.(*Router).Handler(0x40003083c0, 0x400037e000)
        github.com/fasthttp/router@v0.5.2/router.go:326 +0xc48
github.com/authelia/authelia/internal/middlewares.LogRequestMiddleware.func1(0x400037e000)
        github.com/authelia/authelia@/internal/middlewares/log_request.go:14 +0xd4
github.com/valyala/fasthttp.(*Server).serveConn(0x4000328200, 0xf04380, 0x40002dc018, 0x0, 0x0)
        github.com/valyala/fasthttp@v1.6.0/server.go:2018 +0x4f8
github.com/valyala/fasthttp.(*workerPool).workerFunc(0x4000270aa0, 0x40002de060)
        github.com/valyala/fasthttp@v1.6.0/workerpool.go:223 +0x7c
github.com/valyala/fasthttp.(*workerPool).getCh.func1(0x4000270aa0, 0x40002de060, 0xbc3f60, 0x40002de060)
        github.com/valyala/fasthttp@v1.6.0/workerpool.go:195 +0x30
created by github.com/valyala/fasthttp.(*workerPool).getCh
        github.com/valyala/fasthttp@v1.6.0/workerpool.go:194 +0x11c

[james-d-elliott]

Thanks for reporting the bug. I've confirmed the functionality in the code, and it looks like a bug. I've made a fix for it already, you are welcome to test it however consider it alpha. My docker image is: jamesdelliott/authelia:fix-584-disable-regulation