Merge Debian's 1.5.19-4+deb10u1 into our patched ibus package
Ensure we install ibus 1.5.19-4+deb10u1.0tails1 even though its version number is lower than 1.5.19-4.0tails3 (refs: #17144)
We can drop this once the APT overlay suite that introduces
1.5.19-4+deb10u1.0tails1 (bugfix-17144-ibus-security) is merged into our
"testing" APT suite during the 4.0 release process: this will replace the now
obsolete 1.5.19-4.0tails3 packages with the updated
Test suite passes and https://jenkins.tails.boum.org/job/build_Tails_ISO_bugfix-17144-ibus-security/lastSuccessfulBuild/artifact/build-artifacts/tails-amd64-bugfix_17144-ibus-security-4.0-20191016T1931Zfirstname.lastname@example.org/*view*/ confirms we have the right package version.
I'll test ibus input methods manually before sending to QA.