v4 - Dropup caret is missing

[zacechola]

http://v4-alpha.getbootstrap.com/components/button-dropdown/#dropup-variation

[kkirsche]

@zacechola not sure I follow:

The caret is not a manual class, but an ::after for the .dropdown-toggle

[hnrch02]

I think what @zacechola means is that in v3 the caret of the dropup is facing upwards and not downwards.

[zacechola]

Yep

[kkirsche]

Ah, ok. Sorry 😃

[mdo]

Fixed by #17147.