Simple Scan gives no error when output filesystem fills up

[Steve Pemberton]

If the user tries to save the output of a scan to a filesystem that doesn't have enough space, Simple Scan gives no error message. It silently creates a truncated or empty file.

I don't know if this is relevant, but when I found this bug, I was trying to save the scan to a mounted removable drive (a USB stick), and I was creating a multi-page PDF.

$ lsb_release -rd
Description: Ubuntu 18.04.6 LTS
Release: 18.04

$ apt-cache policy simple-scan
simple-scan:
  Installed: 3.28.0-0ubuntu1
  Candidate: 3.28.0-0ubuntu1
  Version table:
 *** 3.28.0-0ubuntu1 500
        500 http://gb.archive.ubuntu.com/ubuntu bionic/main amd64 Packages
        100 /var/lib/dpkg/status

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: simple-scan 3.28.0-0ubuntu1
ProcVersionSignature: Ubuntu 5.4.0-91.102~18.04.1-generic 5.4.151
Uname: Linux 5.4.0-91-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.27
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Sun Dec 26 19:53:16 2021
InstallationDate: Installed on 2021-03-21 (280 days ago)
InstallationMedia: Ubuntu 18.04.3 LTS "Bionic Beaver" - Release amd64 (20190805)
MachineType: System manufacturer System Product Name
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-91-generic root=UUID=0e9d417a-2f2a-4008-85da-5a821afe6aa9 ro quiet splash vt.handoff=1
SimpleScanLog:

SourcePackage: simple-scan
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 07/14/2020
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 5602
dmi.board.asset.tag: Default string
dmi.board.name: PRIME A320M-K
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: Rev X.0x
dmi.chassis.asset.tag: Default string
dmi.chassis.type: 3
dmi.chassis.vendor: Default string
dmi.chassis.version: Default string
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr5602:bd07/14/2020:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnPRIMEA320M-K:rvrRevX.0x:cvnDefaultstring:ct3:cvrDefaultstring:
dmi.product.family: To be filled by O.E.M.
dmi.product.name: System Product Name
dmi.product.sku: SKU
dmi.product.version: System Version
dmi.sys.vendor: System manufacturer