[cairo] cairo_get_target() and groups

[Krzysztof Kosiński]

Hello

When a group is pushed onto a context using cairo_push_group(),
cairo_get_target() will return the base surface rather than the
temporary surface used by the group. Is this by design? It looks like
a bug to me.

[By the way: I have merged the Cairo rendering branch of Inkscape to
trunk recently, so the next release will use Cairo for all rendering.
Thank you for fixes for bugs #29470, #29521 and #32215 which made this
possible.]

Regards, Krzysztof