I think this error has gone. We get a noun form for the examples of this bug report:

(%i4) limit(erf(sqrt(log(t))*sqrt(2)),t,0);

(%o4) 'limit(erf(sqrt(2)*sqrt(log(t))),t,0)

(%i5) limit(erf(sqrt(log(t))/sqrt(2)),t,0);

(%o5) 'limit(erf(sqrt(log(t))/sqrt(2)),t,0)

This might be due to the change of the code for simplifying 0^a which has been reverted in parts.

Setting the status to pending and the resolution to "works for me".

Dieter Kaiser