Ubiquity package remains after an install has occurred.

Install RELEASE remains in the pinned apps after installation has been fully completed.

ProblemType: Bug
DistroRelease: Ubuntu 20.10
Package: ubiquity 20.10.13.1
ProcVersionSignature: Ubuntu 5.8.0-41.46-generic 5.8.18
Uname: Linux 5.8.0-41-generic x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair
ApportVersion: 2.20.11-0ubuntu50.5
Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Thu Feb 4 20:03:14 2021
InstallCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.8.0-25-generic root=UUID=6ba3a4f5-221b-49df-b775-978b50abb388 ro quiet splash vt.handoff=7
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: ubiquity
UpgradeStatus: No upgrade log present (probably fresh install)