Link conceal not working with symbols in link text

[acamso]

Symbols in the link text seem to break functionality resulting in incorrect highlighting and s:Markdown_GetUrlForPosition().

This is with the following settings:

set concealcursor =nc
set conceallevel  =2
let g:vim_markdown_conceal_code_blocks = 0
let g:vim_markdown_edit_url_in  = 'vsplit'
let g:vim_markdown_follow_anchor = 1
let g:vim_markdown_autowrite = 0