do commit location changes to remote in copy --to

test suite pointed out that if a file was copied from B to A, and then
A cloned, the clone ought to immediatly know it can get the file from A.

Remote/Git.hs

@@ -190,8 +190,11 @@ copyToRemote r key
 		let keysrc = gitAnnexLocation g key
 		params <- rsyncParams r
 		-- run copy from perspective of remote
-		liftIO $ onLocal r $ Annex.Content.getViaTmp key $
-			rsyncOrCopyFile params keysrc
+		liftIO $ onLocal r $ do
+			ok <- Annex.Content.getViaTmp key $
+				rsyncOrCopyFile params keysrc
+			Annex.Content.saveState
+			return ok
 	| Git.repoIsSsh r = do
 		g <- gitRepo
 		let keysrc = gitAnnexLocation g key