Title: Unable to Clear PM Notifications from Disabled Group Walls Description: The user is unable to open conversations from disabled group walls that were previously enabled, resulting in a persistent notification from that conversation. Reproduction Steps: 1. Open Firefox 32.0 or Chrome 36.0.1985.143 m. 2. Post on a group's wall. Do not view the subsequent notification. 3. Disable the group wall via the group's admin tools. 4. Click on the PM notification and attempt to click on the conversation in question. 5. Observe. Results: The user is unable to click on the conversation, and as a result, the user is unable to clear the notification. Expected Results: The user should be able to clear the notification by some means. Platform Information: PC OS: Windows 7 64-bit Browser: Mozilla Firefox 32.0, Google Chrome 36.0.1985.143 m Addons/Plug-ins: None