Geary.Imap.FolderSession: Don't crash on empty preview

4 jobs for pureos/byzantium in 12 minutes and 2 seconds (queued for 1 second)
Status Job ID Name Coverage
  Package
passed #328917
librem5
package:deb-debian-bullseye

00:05:43

passed #328918
librem5:arm64
package:deb-debian-bullseye:arm64

00:09:39

 
  Test Package
failed #328919
librem5
autopkgtest-debian-bullseye-package

00:01:42

passed #328920
librem5
lintian-debian-bullseye-package

00:00:47

 
Name Stage Failure
failed
autopkgtest-debian-bullseye-package Test Package
autopkgtest [18:51:30]: @@@@@@@@@@@@@@@@@@@@ summary
version FAIL non-zero exit status 1
autopkgtest [18:51:30]: Binaries: resetting testbed apt configuration
Hit:1 http://deb.debian.org/debian bullseye InRelease
Hit:2 http://deb.debian.org/debian bullseye-updates InRelease
Hit:3 http://security.debian.org/debian-security bullseye-security InRelease
Reading package lists...
Autopkgtest exited with 4
ERROR: Job failed: exit code 4