GParted doesn't recognise EXT4 fs journal partition

Hi All,

Formatting a partition with an ext4 external journal like this mke2fs -O journal_dev -L j1 /dev/nvme1n1p1

Gparted display a warning sign on this partition and the [Informations] window display this.

File Sytem
  File system: unknown
  label:       j1
  UUID:        xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx
  Status:      Not mounted

Partition
  Path:        /dev/nvme1n1p1   First sector:  2048
  Name:                         Last sector:   1751039
  Flags:                        Total sectors: 1748992

.-!---------------------------------------------------------.
| Unable to detect file system! Possible reasons are:       |
| - The file system is damaged                              |
| - The file system is unknown to GParted                   |
| - There is no file system available (unformatted)         |
| - The device entry /dev/nvme1n1p1 is missing              |
.-----------------------------------------------------------.

==============================================

parted report this

$ sudo parted /dev/nvme1n1p1 print
Model: NVMe Device (nvme)
Disk /dev/nvme1n1p1: 895MB
Sector size (logical/physical): 512B/512B
Partition Table: loop
Disk Flags: 

Number  Start  End    Size   File system  Flags
 1      0.00B  895MB  895MB  ext2

Strangely enough parted report 'File system' ext2 while gparted report 'unknown'

I guess there are enough footprints in the external journal partition so parted and gparted could display a 'better' File system, though this is no file system per se, but 'ext4 journal' could be a nice indication, OR, leave 'File system' empty but fill the 'Flags' with 'Ext journal'

Another inconsistency 'may be' is the fact that when a ext4 FS is mounted using this external journal, then the external journal is 'in use' and a 'Key ring' icon should be displayed (locked).

And lastly, 'may be' the [Informations] window could display the list of Ext4 FS using this journal, I think a single journal may handle multiple Ext4 FS but not sure about that, so the list may be reduce to 1 item if there is a one to one mapping (FS, external journal).