linux-ext4 - Need help to understand Ext4 message in /var/log/message file

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Date:   Sat, 25 Apr 2020 00:26:49 +0530
From:   Alok Jain <jain.alok103@...il.com>
To:     linux-ext4@...r.kernel.org, tytso@....edu,
        Andreas Dilger <adilger@...ger.ca>
Subject: Need help to understand Ext4 message in /var/log/message file

Hi Guys,

I need an help to understand the following messages printed in
/var/log/message file

Apr 20 17:42:44 mylinux audispd: node=mylinux type=EXECVE
msg=audit(1587404564.745:5901346): argc=4 a0="mount" a1="-v"
a2="UUID=b1d54239-2b18-44b3-a4bf-5e0ca32b8f78" a3="/tmp/aj/m1"
Apr 20 17:42:45 mylinux kernel: [4633324.069180] EXT4-fs (sde1):
recovery complete
Apr 20 17:42:45 mylinux kernel: [4633324.070157] EXT4-fs (sde1):
mounted filesystem with ordered data mode. Opts: (null)

Actualy one of the iSCSI device is mounted to /tmp/aj/m1 with UUID
(U1) I unmounted this device and mounted new device (UUID
b1d54239-2b18-44b3-a4bf-5e0ca32b8f78) after mount I see the UUID of
newly mounted device changed to U1 and new device got corrupted. I ran
fsck to fix the device but UUID was changed to U1.

Any help is greatly appreciated.

Thanks,
Alok