Link component's `as` doesn't render other components

[brendanpetty]

Hi,
This bug has been well documented in the existing report at #1550
It is still present, with no obvious and maintainable workaround. Makes it hard to integrate with vue UI libraries (e.g. Vuestic)

[crazyhl]

i have same problem

[pascalbaljet]

Duplicate of #746.

See also #1940 and #2264