I spotted that too, and wondered if it might have been a training exercise to teach someone how to programme a ticket machine and test that it was sending a proper signal (?) but the "GPS trace" is only around Padmore Street, and I think it's a shame the records show service 35.
I had never thought that a training vehicle might get fitted with a ticket machine, but I suppose that's a possibility (?) -- -- perhaps from an early stage, a trainee driver could start every trip by checking whether the ticket machine is programmed for a single-decker- ONLY - route, or a DD-suitable route, (for safety) ? (something like that )
The tracking records for First Midland's Worcester vehicles are much more useful so far, than for the Potteries fleet, where the records suggest that only half the fleet is in service !
bustimes.org have improved the system so that when the system has actually seen the bus, it records a single horizontal line of information -- often incomplete or false (like 144 to B'ham) -- but has added a "show map" button which gives a GPS trace for a part of a journey, or a whole journey, or a whole return trip, (or a single location/time ), and allows one to build-up an accurate picture.
So far, the only "serious" discrepancy I've spotted was when then the ticket machine from 42892 claimed to be on the 144 (and has a GPS trace to prove it !!) whereas the GPS traces help sort all the other discrepancies.