evil-indent-right behaves differently than vim in visual block mode

`evil-indent-right` (bound to `>`) behaves line-wise during a visual block selection (using `C-v`). For example:

```clj
{offset :- (s/maybe s/Int) 0}
{fields :- [s/Keyword] nil}
{count? :- s/Bool false}
{unique-user-count? :- s/Bool false}
```

If the point is at line 1 on the `:` and I do `C-v j j >`, the first three *lines* are indented, instead of the visually selected block.

I'm using Emacs 25.1.1 on Fedora 25 (x86_64). I installed evil from spacemacs@develop (as of 3072e7277340f1111bbeeed19f3e834bc05513e7).

Start with the evil-indent-right command and reproduce the reported C-v j j > case using the example block. Trace how the visual block selection is interpreted, then verify that only the selected columns change while the surrounding line text remains unchanged.

Written by the indexing model from the issue text.