In screensaver preferences, Lock Screen tab, delay for lock screen cannot be edited

[braoult]

In screensaver preferences, Lock Screen tab:

For the "Lock Screen after the screensaver is active for" field, if we change the value with the "+/-" buttons, everything is fine.
However, if we change the value manually, and quit, when we come back, the old value is still there.

The only way to change the value is with the "+/-" buttons.

For me, either this should be fixed, or this field should not be editable by hand.

ProblemType: Bug
DistroRelease: Ubuntu 19.10
Package: xfce4-screensaver 0.1.8-1
ProcVersionSignature: Ubuntu 5.3.0-26.28-generic 5.3.13
Uname: Linux 5.3.0-26-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.11-0ubuntu8.2
Architecture: amd64
CurrentDesktop: XFCE
Date: Sun Jan 26 19:45:29 2020
SourcePackage: xfce4-screensaver
UpgradeStatus: Upgraded to eoan on 2019-12-19 (38 days ago)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.