[Gimp-developer] How to transfer the darktable plug-in processed raw file to GIMP

[Elle Stone <ellestone ninedegreesbelow com>]

Upon attempting to open my sample CR2 file from within GIMP (updated 
this morning) using the darktable plug-in, darktable does indeed open 
the raw file in the usual darktable window.

However it's not obvious (at least not to me) how to then persuade 
darktable to transfer the processed raw file from darktable back to GIMP.

Closing the darktable window does immediately transfer the processed raw 
file back to GIMP.

Is there a more "official" way to transfer the darktable-processed raw 
file from darktable to GIMP?

Best,
Elle