[0.18.41] Can't drag-place blueprint

[ggoblin]

Before this update, I could "paint" ghosts of entities by dragging the mouse along the intended path. Current release starts moving the map instead, that leads to one ghost put down and maybe some more if you move the mouse fast.

Steps to reproduce:
1. take any blueprint into cursor
2. click to put it down (works as intended)
3. drag your mouse with left button pressed (this moves map instead of "painting" ghosts)

Might be connected: most of the time, you can bypass this problem by holding down shift key. This also helps when you can't place the blueprint at all. Holding shift all the time has two detrimental effects, however: reverse of rotation and carpal pains.

What I expected:
When I drag a mouse with ghost in cursor, ghost entities should be put on terrain. When I hold shift, it should start marking obstructing terrain and trees for deconstruction. When I have nothing in cursor, dragging mouse should move the map in view. Basically it should work as it worked before the grid-ghost feature was introduced.

[kovarex]

Thanks for the report, fixed for the next release.