New line cannot be deleted (paragraphs cannot be merged) in tracked changes

[Christopher Barrington-Leigh]

Start new document. Type "one", then press enter, then type "two". Now turn on tracked changes. Delete the newline, ie to merge "one" and "two" into one word.
Now compile the document to PDF.

Result:
PDF shows the two words on separate lines.

Expected result:
The newline was deleted in tracked changes, so it should no longer exist.

ProblemType: Bug
DistroRelease: Ubuntu 17.10
Package: lyx 2.2.3-1
ProcVersionSignature: Ubuntu 4.13.0-22.25-generic 4.13.13
Uname: Linux 4.13.0-22-generic x86_64
ApportVersion: 2.20.7-0ubuntu3.7
Architecture: amd64
CurrentDesktop: ubuntu:GNOME
Date: Tue Jan 9 09:55:38 2018
EcryptfsInUse: Yes
InstallationDate: Installed on 2017-11-18 (52 days ago)
InstallationMedia: Ubuntu 17.10 "Artful Aardvark" - Release amd64 (20171018)
SourcePackage: lyx
UpgradeStatus: No upgrade log present (probably fresh install)

[Scott Kostyshak (scott-kostyshak)]

Thanks for your report, and especially for your recipe to reproduce. I'm pretty sure this is an upstream bug, so please report it and future similar bugs upstream. If you think for some reason the bug is Ubuntu-specific, then report it here.

To see LyX bugs related to change tracking, see here:

http://www.lyx.org/trac/query?status=accepted&status=assigned&status=new&status=reopened&summary=~&component=changes

If the bug you found is not listed there, please create a new ticket and for the "component" select "changes".

[Jean-Marc Lasgouttes (jmarc)]

This bug has been fixed recently upstream:
https://www.lyx.org/trac/ticket/3136

This will be present in LyX 2.4.0.