#1129 PCManFM - Devices - Specified directory is not valid

[CIV]

Hello:

Running PCManFM 1.3.1 under Devuan Beowulf / Xfce 4.12.

groucho@devuan:~$ uname -a
Linux devuan 5.10.0-0.bpo.3-amd64 #1 SMP Debian 5.10.13-1~bpo10+1 (2021-02-11) x86_64 GNU/Linux
groucho@devuan:~$ 

Problem:
Opening PCManFM and going to Devices reveals all the devices presently in the system.
Clicking on a device, if unmounted, opens a pop-up:

Error
The specified directory 'computer:///
Hitachi%HTS543216L9SA00.drive' is not valid

This is not true.
The specified directory is valid as if the the same is mounted, the error message does not appear and its content is shown and accessible.

Expected behaviour:
Opening PCManFM, going to Devices and clicking on an unmounted device should open a pop-up asking for the proper credentials or at the very least a pop-up indicating that the user is not allowed to mount the device, if needed (of course).

Thanks in advance.

CIV