Bastien Nocera authored Mar 05, 2019 and Emmanuele Bassi committed Mar 05, 2019

The "run once" initialisation of pixbuf modules shipped with gdk-pixbuf
itself would be skipped if an application was successfully calling
gdk_pixbuf_init_modules() first, as this would set the internal list of
file_formats to be non-NULL, and skip any initialisation of those
modules.

This fix makes sure that pixbuf modules shipped with gdk-pixbuf are
always initialised, regardless of whether gdk_pixbuf_init_modules()
successfully initialised an application provided one.

Fixes: fd1376b7