initramfs script "zfs" tries to mount datasets other than filesystems

The initramfs script "zfs" provided by zfs-initramfs 0.6.4-1.1-1 on Debian Jessie (8.0) tries to mount datasets other than filesystems (i.e. snapshots, volumes). It results in mount failure and dropping me into initramfs shell prompt on boot.

Mount failures occur on boot if at least one of the followings exists in the root pool:

volumes (e.g. swap)
snapshots (in case the pool property listsnaps is set to on)

The script "zfs" is packed into initramfs from /usr/share/initramfs-tools/scripts/zfs.

I think the script should try to mount only filesystems. I propose this patch as a solution of this bug, to enumerate only filesystems explicitly:

@@ -628,7 +628,7 @@

    # Go through the complete list (recursivly) on all filesystems below
    # the real root dataset
-   filesystems=$(zfs list -o name -H -r $ZFS_BOOTFS_ORIG)
+   filesystems=$(zfs list -t filesystem -o name -H -r $ZFS_BOOTFS_ORIG)
    for fs in $filesystems $ZFS_INITRD_ADDITIONAL_DATASETS
    do
        mount_fs $fs

zfsonlinux / pkg-zfs

initramfs script "zfs" tries to mount datasets other than filesystems #156