Fix runtime when editing bans introduced by untrustworthy code ocelot. (#62322)

code/modules/admin/sql_ban_system.dm

@@ -219,6 +219,7 @@
 		<input type='hidden' name='oldreason' value='[reason]'>
 		<input type='hidden' name='page' value='[page]'>
 		<input type='hidden' name='adminkey' value='[admin_key]'>
+		<input type='hidden' name='role' value='[role]'>
 		<br>
 		When ticked, edits here will also affect bans created with matching ckey, IP, CID and time. Use this to edit all role bans which were made at the same time.
 		"}
@@ -434,6 +435,7 @@
 			changes += list("Reason" = "[href_list["oldreason"]]<br>to<br>[reason]")
 		if(!changes.len)
 			error_state += "No changes were detected."
+		roles_to_ban += href_list["role"]
 	else
 		severity = href_list["radioseverity"]
 		if(!severity)