Fixed small annoyonce that was there for long;

New objects were not created with correct 'ipowin' value, to denote the
default ipo to show. That caused sometimes wrong display with weird empty
menu button in header.

source/blender/blenkernel/intern/object.c

@@ -647,7 +647,7 @@ Object *add_object(int type)
 		ob->upflag= OB_POSZ;
 	}
 	ob->ipoflag = OB_OFFS_OB+OB_OFFS_PARENT;
-	
+	ob->ipowin= ID_OB;	/* the ipowin shown */
 	ob->dupon= 1; ob->dupoff= 0;
 	ob->dupsta= 1; ob->dupend= 100;
 

source/blender/blenloader/intern/readfile.c

@@ -4236,6 +4236,7 @@ static void do_versions(Main *main)
 	}
 	if(main->versionfile <= 233) {
 		Material *ma= main->mat.first;
+		Object *ob= main->object.first;
 		
 		while(ma) {
 			if(ma->rampfac_col==0.0) ma->rampfac_col= 1.0;
@@ -4243,6 +4244,12 @@ static void do_versions(Main *main)
 			if(ma->pr_lamp==0) ma->pr_lamp= 3;
 			ma= ma->id.next;
 		}
+		
+		/* this should have been done loooong before! */
+		while(ob) {
+			if(ob->ipowin==0) ob->ipowin= ID_OB;
+			ob= ob->id.next;
+		}
 	}
 	
 	/* don't forget to set version number in blender.c! */

source/blender/src/space.c

@@ -4130,7 +4130,7 @@ void allqueue(unsigned short event, short val)
 					scrarea_queue_headredraw(sa);
 					if(val) {
 						si= sa->spacedata.first;
-						if (!G.sipo->pin)							
+						if (si->pin==0)							
 							si->blocktype= val;
 					}
 				}