replace dedupe with distinct

[tonsky]

dedupe is meant for sorted collections only

user=> (dedupe [1 2 2 3 2])
(1 2 3 2)
user=> (distinct [1 2 2 3 2])
(1 2 3)

[r0man]

Oh, thanks! :)

[nha]

That was the original intent in my mind.

I am completely fuzzy on the details about how CSS operates, but I have a case where removing any of the two "aligned" classes of the same element results in visual changes there : http://semantic-ui.com/examples/login.html

[r0man]

@nha ok, I found the follwoing 2 links. Looks like the W3C spec is loose and it is a known problem with Semantic Ui:

• http://w3c.github.io/html/dom.html#classes
• Duplicate class names are removed by Meteor Semantic-Org/Semantic-UI#1526

So, I guess I revert this change again? @tonsky Are you fine with that?

[tonsky]

Oh my... Semantic UI decision to rely on exact string value of className in presence of classList browser API seems very very unwise. I guess it won’t harm much to remove deduplication though. But in that case we should get rid of dedupe as well.

[tonsky]

BTW I checked with React, they use className, not classList, to change classes (because of IE compatibility), so duplicate classNames should go though React without obstacles