[poppler] poppler-0.12.1 vs poppler-0.12.(2|3) ABI (and API) breakage?

[Rex Dieter]

Noticed that after upgrading to 0.12.2 (and subsequently 0.12.3), that 
inkscape-0.47 (built against 0.12.1) no longer import pdfs, and would bail 
with:

inkscape: symbol lookup error: inkscape: undefined symbol:
_ZN13GfxColorSpace5parseEP6Object

and confirmed that rebuilding inkscape-0.47 now fails.

Was this an intentional change?
Is this is poppler or inkscape (or both) issue/bug ?

Related downstream bugs,
https://bugzilla.redhat.com/551119
http://bugs.archlinux.org/task/17524 

-- Rex