Fixing bug #2556: http://projects.blender.org/tracker/?func=detail&atid=125&aid=2556&group_id=9

MEMSET was clearing the TransInfo struct after the constraint setup call has been made.

Temporary fix until the manipulator transform init is split off, like normal transform.

source/blender/src/transform_manipulator.c

@@ -1463,7 +1463,7 @@ int BIF_do_manipulator(ScrArea *sa)
 	// find the hotspots first test narrow hotspot
 	val= manipulator_selectbuf(sa, 0.5f*(float)U.tw_hotspot);
 	if(val) {
-		
+		checkFirstTime(); // TEMPORARY, check this before doing any transform call.
 		// drawflags still global, for drawing call above
 		drawflags= manipulator_selectbuf(sa, 0.2f*(float)U.tw_hotspot);
 		if(drawflags==0) drawflags= val;