Description of problem:
From the doc:
—

1. You cannot exclude a device (e.g. /dev/sdg) directly. Instead you have to exclude everything
2. ON that device and then the dependency tracker will automatically exclude the device from the
3. recovery (because there won't be any recovery information for that "unnecessary" device).
   —
   => I understand that a device should be excluded if all the content of it is excluded, right ?

Version-Release number of selected component (if applicable):
rear-2.6-3.el8

How reproducible:
always

Steps to Reproduce:
1. mount a device on /mnt:
/dev/vdb on /mnt type xfs (rw,relatime,seclabel,attr2,inode64,logbufs=8,logbsize=32k,noquota)
2. exclude the content of this mount point in local.conf:
BACKUP_PROG_EXCLUDE=('/tmp/' '/dev/shm/' '/mnt/*' )
3. run rear -dD mkbackup

Actual results:

/mnt is in include and also exclude list:
—
2022-01-31 03:55:21.607004724 Include list:
2022-01-31 03:55:21.608574187 /
2022-01-31 03:55:21.610103973 /boot/efi
2022-01-31 03:55:21.611596090 /boot
2022-01-31 03:55:21.613123105 /mnt
2022-01-31 03:55:21.614607219 Exclude list:
2022-01-31 03:55:21.616118655 /tmp/*
2022-01-31 03:55:21.617591045 /dev/shm/*
2022-01-31 03:55:21.619125130 /mnt/*
2022-01-31 03:55:21.620635750 /usr/*
2022-01-31 03:55:21.622085199 /var/*
2022-01-31 03:55:21.623513501 /tmp/rear.FOC2JRt0rV15jr9
—
And vdb is in disk layout:
—
disk /dev/vdb 536870912 loop
fs /dev/vdb /mnt xfs uuid=6f06686e-dda0-4578-99e3-9eb1297a04da label= options=rw,relatime,attr2,inode64,logbufs=8,logbsize=32k,noquota
—

todo:
—
todo /dev/vdb disk
todo fs:/mnt fs
—

Expected results:
disk vdb not touched

Additional info:
I did't dig to find the dependency tracker to understand why the device is not excluded.
Please let me know if help is needed.
Thank you !