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Crash when CTRL+click to show a vehicle group that is collapsed #7974
Version of OpenTTD
Under some circumstances a crash (assertion failed) happens when the user CTRL+click to open/'bring to front' the vehicle group window and to show/select a vehicle's group (feature introduced in 1.10.0-beta2, #7800).
It seems to only (and always) happen when both these conditions apply:
I set up 3 savegames with some of the simplest example cases for the issue:
The vehicle group window is opened (if not already), and scrolled if needed to show/select the vehicle's group.
The game crashes with the error message:
Steps to reproduce