[Bug 62176] robots 2.14.3 hangs at level 65

[petertw]

Public bug reported:

The "Safe teleport" button at level 65 hangs robots2. Specifically, the
game hangs when there is nowhere safe to teleport to.

The source suggests the author tried to kill the player when there is
nowhere safe to teleport, but it actually gets stuck in a loop somehow.
maybe its a problem with the safe_teleport_available() function.

** Affects: gnome-games (Ubuntu)
     Importance: Untriaged
         Status: Unconfirmed

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robots 2.14.3 hangs at level 65
https://launchpad.net/bugs/62176