Appear and mode are included in a compiled template

[kwiat1990]

Hi, I have noticed that when I use appear or mode on transition component, both will be included in the HTML after build. Do I make something wrong or is it a problem with the plugin itself?

Compiled code:
<div appear="true" mode="out-in" data-v-01a1d1be="" style="">.../<div>

Source code:
<fade-transition :appear="true" mode="out-in">...</fade-transition>

It is worth noticing that if I set appear just as a flag then it would compile to appear="".

I think this is the possible reason why my routing breaks on production (I get page reload between pages).