[r6993] Bridge + active power-line removal causes segfault

[Spacethingy]

(Also present in r6943.)


Best understood if I just show you how to recreate it:


1) Create a powerline connected to a power grid that is being used.


2) Drag a bridge that ends on the powerline (the pop-up shows that an invisible powerline still exists on the bridge's end tile):



3) Delete the invisible powerline - CTD occurs, terminal shows a segfault occurred.


Do this with an inactive power grid and nothing abnormal happens.


Cheers guys, hope this helps. 

EDIT: Works with power bridges too; trying to delete the end tile here causes a segfault.

[prissi]

Try next nightly please.

[Spacethingy]

Cool, fixed in r6999. Bridges can't end on a powerline tile now, as would be expected. Thanks guys!

(BTW, it may have already been fixed earlier before I posted, but the nightly build after r6993 was a messed up download. Sorry!)