end attribute for animation
A small circle is moved from top to bottom
in 10s, from left to right in 10s, the animations
are repeated.
The begin of the second repetition - repeat(2) - of the horizontal animation
stops the animation of the vertical animation 5s before this event.
Therefore the repetition stops it late at 20s, but because the
active duration is determined by the computed time 15s, the frozen value
is determined with the computed time interval, resulting in a switch back to the
middle. This means after a movement from
top left to bottom right two times the animation is changed to
a movement from middle left to middle right.
If something red is getting visible, an error occured.