Invisible obstacle on default test drive map

[Just_Satan 0]

Error report
Describe problem and what you saw	After update 0.11.30 there is a invisible obstacle in G2 sector on test drive map
What you expected to see	Nothing
Conditions in which error reproduce	Any car or time
Problem details	On screenshot
Frequency of reproduction	always
Time of bug

[Skula1975 583]

Fixed