Hotfix my Hotfix

I have just descovered a Hotfix which fixes a problem when a Hotfix is applied and erases the SysHotfixManifest class, thereby removing my only chance of finding out what Hotfixes have been applied.  I'll need a lie down now.

You can see an example of the SysHotfixManifest class here, listing each of the Knowledge Base patches applied as individual method names.