Bugfix;

More referenced library issues: if an Object loses the Armature (because
for example the linked file removed it) the Object still had the Pose and
posemode flag set, crashing Blender.

source/blender/blenkernel/intern/scene.c

@@ -307,6 +307,8 @@ void set_scene_bg(Scene *sce)
 		flag= ob->flag & (OB_FROMGROUP);
 		base->flag |= flag;
 		
+		/* not too nice... for recovering objects with lost data */
+		if(ob->pose==NULL) base->flag &= ~OB_POSEMODE;
 		ob->flag= base->flag;
 		
 		ob->ctime= -1234567.0;	/* force ipo to be calculated later */

source/blender/blenloader/intern/readfile.c

@@ -2613,6 +2613,13 @@ static void lib_link_object(FileData *fd, Main *main)
 				warn= 1;
 				if(ob->id.lib) printf("Can't find obdata of %s lib %s\n", ob->id.name+2, ob->id.lib->name);
 				else printf("Object %s lost data. Lib:%x\n", ob->id.name+2, (unsigned int) ob->id.lib);
+				
+				if(ob->pose) {
+					free_pose_channels(ob->pose);
+					MEM_freeN(ob->pose);
+					ob->pose= NULL;
+					ob->flag &= ~OB_POSEMODE;
+				}
 			}
 			for(a=0; a<ob->totcol; a++) ob->mat[a]= newlibadr_us(fd, ob->id.lib, ob->mat[a]);