GPG: Feature request: Command to refresh the key.

[Mikaela]

It would be nice if it was possible to "refresh" the key from keyserver. Get gribble to know that the key has new signatures (in case they are used by GPG, I don't know) and subkeys.

This could be good with for example @nyuszika7h 's situation. He created sign-only key and registered to gribble. Later he created subkey for encrypting, but gribble still knows only the sign-only key.

EDIT 1: Use the correct term for this request (update --> refresh).
EDIT 2: add the EDIT 1.

[Mikaela]

So the command, which that command should execute would be for example.

gpg --keyserver pool.sks-keyservers.net --refresh-keys 0x4DB53CFE82A46728