Nested blockquote accent lines not consistent with parent blockquote

[batrand]

• Open sandbox vault and install Border
• Create a blockquote with nested blockquotes, like so:

> TITLE
> > subtitle subtitle  subtitle  subtitle  subtitle  subtitle  subtitle  subtitle  subtitle  subtitle  subtitle  subtitle  subtitle  subtitle  subtitle  subtitle  subtitle  subtitle  subtitle  subtitle  subtitle  subtitle  subtitle  subtitle  subtitle  subtitle  subtitle  subtitle  subtitle  subtitle  
> > > subtitle  subtitle  subtitle  subtitle  subtitle  subtitle  subtitle  subtitle  subtitle  subtitle  subtitle  subtitle  subtitle  subtitle  subtitle  subtitle  subtitle  subtitle  subtitle  subtitle  subtitle  subtitle  subtitle  subtitle  subtitle  subtitle  subtitle  subtitle  subtitle   

Result:

• The left accent lines of the children blocks extend further down compared to the parent's left accent line
• The left accent lines of the children blocks don't have any radius, while the parent's does have radius

[Akifyss]

I just checked, and the blockquote accent lines have a rather complex structure in the DOM tree. This makes it nearly impossible to style them with CSS alone to match the parent blockquote. Sorry.