[2.0.11] Undo doesnt work for removed trainstopps ins schedule

[lordfwahfnah]

Hi,

basically what the topic says.
I accidently removed a trainstop from my train schedule and i can't undo the action with Strg+z.

Maybe this can be added?

Thanks!

[Genhis]

Thanks for the report, this would be a feature request, not a bug.