"cannot locate the core snap" on Ubuntu

I just tried installing a base18 snap as the first snap on an Ubuntu Classic 16.04LTS system.

This installed core18 but failed to install the snap (egmde-confined-desktop) because running the install hook failed with: “cannot locate the core snap: No such file or directory”.

Installing core manually worked around this problem.

Surely either core should not be needed (and core18 used?) or core should installed automatically?

I have been told this is fixed on 2.36, @mvo is that correct?