As there were no proper steps given in RM to re-produce the issue, I assumed that user tried to delete schema and then click on the table, hence he got that error.
So I checked the code notice that validation was missing at a location of error trace mentioned in RM, it assumed that we always get one row from database.
PFA minor patch to add object validation in table node for SQL and Properties tab .
RM#2395
I don't see how this relates to the issue reported which is related to dropping a schema containing a view (from what I can tell), whereas the patch is changing the table module.
FWIW, I can't reproduce the reported issue either.
