[Ohrrpgce] SVN: teeemcee/9768 mapedit: mouse_attention shouldn't change when releasing a mouse button

[subversion at HamsterRepublic.com]

teeemcee
2017-11-27 07:00:45 -0800 (Mon, 27 Nov 2017)
167
mapedit: mouse_attention shouldn't change when releasing a mouse button

Although if in future we want allow dragging one thing onto another, that will
need rethinking
---
U   wip/mapsubs.bas