Autoplay without Infinite appears to have unexpected behavior

[vittau]

Describe the bug
When the autoplay plugin is used without infinite, two things happen:

• at the end, it just stays in the last slide instead of going back to the first one;
• however, the onChange callback is fired with an out of bounds increment (which causes Dots to wrap back to the beginning, but the carousel remains in the last slide).

To Reproduce
Create a carousel with autoplay, but without infinite.

Expected behavior
The carousel should either go back to the first slide and keep autoplaying from there, or it should not call onChange with an out of bound value.

Environment
System:
OS: Windows 10 10.0.19042
CPU: (4) x64 Intel(R) Core(TM) i3-4170 CPU @ 3.70GHz
Memory: 8.69 GB / 15.95 GB
Binaries:
Node: 14.17.0 - C:\Program Files\nodejs\node.EXE
Yarn: 1.22.5 - C:\Program Files (x86)\Yarn\bin\yarn.CMD
npm: 6.14.13 - C:\Program Files\nodejs\npm.CMD
Browsers:
Edge: 44.19041.1023.0
Internet Explorer: 11.0.19041.1
Firefox 89.0