It appears that it did. I manually ran the EPG update after installing the new file, and all the Pending items showed up again. I'll have to see if things run as expected in order to give an unqualified "yes", but for now it looks good.
Just wanted to check back in and say that the fix you gave me worked, everything is going as it should.
Although I did discover one small bug - when we switched from Daylight Savings Time, all my manual recordings began an hour earlier, even though they were still listed at the same time as setup in the Recurring list. So my 5:10pm manual recording started at 4:10pm - or I should say attempted to start, because something else was scheduled at that time.
No hurry fixing that one, I guess, since it won't come up again for a number of months.