[Ohrrpgce] SVN: teeemcee/10921 Fix crash when attack targetting a register was used out of battle

[subversion at HamsterRepublic.com]

teeemcee
2019-01-18 18:07:36 -0800 (Fri, 18 Jan 2019)
221
Fix crash when attack targetting a register was used out of battle

The crash was inside menu_attack_targ_picker, so affected items and the spells
menu but not the "map cure" command.

Introduced apparently in 2010, r3546
---
U   wip/bmod.rbas
U   wip/menustuf.rbas
U   wip/whatsnew.txt