final new NanoUI fixes and tgui port

code/modules/admin/view_variables/topic.dm

@@ -223,7 +223,7 @@
 			usr << "This can only be done to instances of type /datum"
 			return
 
-		src.holder.marked_datum = D
+		src.holder.marked_datum_weak = weakref(D)
 		href_list["datumrefresh"] = href_list["mark_object"]
 
 	else if(href_list["rotatedatum"])
@@ -476,7 +476,10 @@
 			usr << "This can only be done on mobs with clients"
 			return
 
-		H.client.reload_nanoui_resources()
+		nanomanager.close_uis(H)
+		H.client.cache.Cut()
+		var/datum/asset/assets = get_asset_datum(/datum/asset/nanoui)
+		assets.send(H)
 
 		usr << "Resource files sent"
 		H << "Your NanoUI Resource files have been refreshed"

code/modules/admin/view_variables/view_variables.dm

@@ -45,7 +45,7 @@
 						</tr></table>
 						<div align='center'>
 							<b><font size='1'>[replacetext("[D.type]", "/", "/<wbr>")]</font></b>
-							[holder.marked_datum == D ? "<br/><font size='1' color='red'><b>Marked Object</b></font>" : ""]
+							[holder.marked_datum() == D ? "<br/><font size='1' color='red'><b>Marked Object</b></font>" : ""]
 						</div>
 					</td>
 					<td width='50%'>