visual artifacts from vim

[Seth Arnold]

Hello, when scrolling down in vim I got some strange results, the "percentage through the file" and ruler from vim's status line were accidentally brought upwards as I scrolled down. The attached screenshot shows the issue.

I've seen other funny visual artifacts in vim in urxvt since upgrading to Bionic.

One included 'leftover' text from a previous line on screen not being cleared; the characters remained fixed in place while the contents around scrolled correctly. Vim knew the text wasn't there, the cursor could not be placed on those cells.

Thanks

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: rxvt-unicode 9.22-3
ProcVersionSignature: Ubuntu 4.15.0-20.21-generic 4.15.17
Uname: Linux 4.15.0-20-generic x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
ApportVersion: 2.20.9-0ubuntu7
Architecture: amd64
Date: Thu May 17 20:04:16 2018
InstallationDate: Installed on 2012-10-18 (2037 days ago)
InstallationMedia: Ubuntu 12.04.1 LTS "Precise Pangolin" - Release amd64 (20120823.1)
ProcEnviron:
 TERM=rxvt-unicode-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: rxvt-unicode
UpgradeStatus: Upgraded to bionic on 2018-05-02 (16 days ago)