Init unable to mount root if it on lvm device, which is over mdadm

This bug appears follows:

Sometimes on linux-image-3.2.0-58-generic.
Always on linux-image-3.5.0-41-generic
Always on linux-image-3.8.0-35-generic

I tried to interrupt init by inserting the following code:

/bin/sh

in '/usr/share/initramfs-tools/scripts/local'

        # FIXME This has no error checking
        # Mount root
        mount ${roflag} ${FSTYPE:+-t ${FSTYPE} }${ROOTFLAGS} ${ROOT} ${rootmnt}
        mountroot_status="$?"
        /bin/sh #I added this code here
        if [ "$LOOP" ]; then
                if [ "$mountroot_status" != 0 ]; then
                        if [ ${FSTYPE} = ntfs ] || [ ${FSTYPE} = vfat ]; then

and of course update initramfs after this.

dmsetup is correctly show logical volumes, by command `dmsetup ls`

sysraid-winxp (252, 5)
sysraid-lxc_redmine_aptarchives (252, 12)
sysraid-zeus--datafs (252, 11)
sysraid-lxc_redmine--dev_aptarchives (252, 14)
sysraid-lxc_redmine_datafs (252, 10)
sysraid-lxc_redmine--dev_datafs (252, 13)
sysraid-zeus--home (252, 8)
sysraid-zeus--tmp (252, 2)
sysraid-squiddebproxy (252, 6)
sysraid-zeus--swap (252, 1)
sysraid-zeus--rootfs (252, 0)
sysraid-backups (252, 7)
sysraid-lxc_redmine_rootfs (252, 9)
sysraid-zeus--var--log (252, 3)
sysraid-zeus--iso--images (252, 4)
sysraid-lxc_poseidon (252, 15)
sysraid-lxc_pdc (252, 16)

But manual mount of root to /root of initram filesystem is break down by error that fs driver cannot find superblock.

I tried to mount all other existing partitions from volume group sysraid, but they also could not be mounted because of `bad superblock`

Then I tried to mount existing (/boot) partition from mdadm device (md0) and it was succesful.

After that i tried to refresh logical volume's by a command `/sbin/lvm vgchange --refresh` and then mount root succefull.

I decided to improve init script by following code in mountroot function in file
`/usr/share/initramfs-tools/scripts/local`:

# Refresh volume group's if prev attempt failed
#
dmsetup -v info $ROOT | grep -q 'UUID: LVM'
        if [ "$?" != "1" ] && [ "$mountroot_status" != 0 ] && [ -x /sbin/lvm ]
        then
                /sbin/lvm vgchange --refresh && mount ${roflag} ${FSTYPE:+-t ${FSTYPE} }${ROOTFLAGS} ${ROOT} ${rootmnt}
        fi

It must be inserted after:
...
        # FIXME This has no error checking
        # Mount root
        mount ${roflag} ${FSTYPE:+-t ${FSTYPE} }${ROOTFLAGS} ${ROOT} ${rootmnt}
        mountroot_status="$?"

       #INSERT CODE HERE

        if [ "$LOOP" ]; then
                if [ "$mountroot_status" != 0 ]; then
...

What do you think about this hook?

Can I rely on the adoption of this patch in upstream?
---
ApportVersion: 2.0.1-0ubuntu17.6
Architecture: amd64
DistroRelease: Ubuntu 12.04
InstallationMedia: Ubuntu-Server 12.04.2 LTS "Precise Pangolin" - Release amd64 (20130214)
MarkForUpload: True
Package: initramfs-tools 0.99ubuntu13.4
PackageArchitecture: all
ProcEnviron:
 LANGUAGE=en_US:en
 TERM=xterm
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 3.8.0-35.50~precise1-generic 3.8.13.13
Tags: precise
Uname: Linux 3.8.0-35-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: