[ESS] completion of command in R ??

[Christian]

Hi,

since I switched to Sierra (Mac) and R-3.3.2, ESS 16.04,
I miss the convenient completion of a command in R. Previously, after 
entering xyz, commands came up starting with this sequence only  with 
presses of C-^. Now *all* past commands come up, and the point is at the 
end now, instead of at the start, which I find more convenient.

Can the old behaviour brought back? How?

Thanks  C.
-- 
Christian Hoffmann
Rigiblickstrasee 15b
CH-8915 Hausen am Albis
Telefon 0041-(0)44-7640853