there seems to be a new bug introduced after 1.7.4; as always, I can
provide more details later and/or file a bug report, but maybe this is
already enough, and before I forget about it, here goes:
In a script of ours, we have an "omit" test statement after a standard
(OLS) estimation, but in between there are some other calculations
("scalar" and "matrix", so effectively "genr" I guess).
This worked fine up to 1.7.4, but current snapshots complain at the
"omit" line, saying that no estimate has been performed so far.