id	summary	reporter	owner	description	type	status	component	version	resolution	keywords	cc	guest	host
5270	Strange message when removing an Immutable disk and 'Remove' button should not be enabled	Mark Cranness		" * Create a new hard disk, and mark it as immutable.
 * Attach it to a VM.
 * Use Virtual Media Manager to remove it (Remove button should not be enabled)
 * ""Are you sure?"" - Remove
 * ""Do you want to delete?"" - Keep
{{{
Failed to close the hard disk C:
...
Hard disk '<NULL>' has 20641136 child hard disks
}}}

If I answer ""Do you want to delete?"" - Delete, the message is:
{{{
Hard disk '<NULL>' has 0 child hard disks
}}}"	defect	closed	GUI	VirtualBox 3.2.8	fixed			other	other