Near miss in Johannesburg; Radar based Report

Lufthansa B748 nearly collided with a South African Airways Airbus A320 on the runway in Johannesburg

According to media reports (including some aviation reports) a Lufthansa B748 nearly collided with a South African Airways Airbus A320 on the runway in Johannesburg. 

The (known as highly inaccurate) replay-display by a certain radar website shows, that the B748 while accelerating for takeoff from Johannesburg's runway 03L had a South African Airways A320 cross the runway at the same time in short distance across the first taxiway ahead of the B748, the A320 made it across the runway before the B748 came to that point, the B748 continued takeoff. 

So this is the "story" of a "near collision on the runway" according to such media.

However, what really happened is this:

The B748 was cleared to line up runway 03L and lined up. The crew disliked the view on their weather radar and decided not to continue with their takeoff. 

They vacated the runway and returned to the holding point runway 03L. In the meantime, because the Lufthansa was now taxiing, tower cleared the A320 to cross the runway. After the B748 returned to the hold short line, the A320 had long crossed the runway, the B748 departed without further incident. 

All safe, all normal, end of real story. No near collision on the runway, no runway incursion occurred, no close proximity of aircraft occurred, no rejected takeoff occurred, ...