What were you trying to do that didn't work?

Following documentation on https://access.redhat.com/articles/4977891#exclude-rpms-from-upgrade , tried to exclude third party packages during leapp upgrade, dnf.conf configuration is not preserved in upgrade

Please provide the package NVR for which bug is seen:

dnf-4.0.9.2-2.el7_9.noarch

leapp-0.16.0-1.el7_9.noarch

leapp-upgrade-el7toel8-0.19.0-1.el7_9.noarch

How reproducible: 

Steps to reproduce

1.

In up to date RHEL 7.9, add couchdb repo and yum install couchdb and couch-js:

cat /etc/yum.repos.d/couchdb.repo 
[couchdb]
name=couchdb
baseurl=https://apache.jfrog.io/artifactory/couchdb-rpm/el$releasever/$basearch/
gpgkey=https://couchdb.apache.org/repo/keys.asc https://couchdb.apache.org/repo/rpm-package-key.asc
gpgcheck=1
repo_gpgcheck=1
enabled=1

2. 

Add exclusions to dnf.conf:

cat /etc/dnf/dnf.conf 
[main]
gpgcheck=1
installonly_limit=3
clean_requirements_on_remove=True
exclude=couch-js,couchdb

3.

Run "leapp upgrade"

Expected results

couchdb package remains installed:

rpm -qa | grep couch
couch-js-1.8.5-21.el7.x86_64
couchdb-3.3.3.1-1.el7.x86_64

Actual results

only couch-js package remains installed:

rpm -qa | grep couch
couch-js-1.8.5-21.el7.x86_64

Before leapp upgrade, package dependencies are similar between couchdb and couch-js:

1. repoquery --installed --whatrequires couchdb-3.3.3.1-1.el7.x86_64
   couchdb-0:3.3.3.1-1.el7.x86_64
2. repoquery --installed --whatrequires couch-js-1.8.5-21.el7.x86_64
   couchdb-0:3.3.3.1-1.el7.x86_64
   # 

1. yum deplist couchdb-3.3.3.1-1.el7.x86_64
   .../...
   couchdb                                                                                                                                                                                                                                 19/19
   package: couchdb.x86_64 3.3.3.1-1.el7
     dependency: /bin/sh
      provider: bash.x86_64 4.2.46-35.el7_9
     dependency: couch-js = 1:1.8.5
      provider: couch-js.x86_64 1:1.8.5-21.el7
     dependency: curl
      provider: curl.x86_64 7.29.0-59.el7_9.2
     dependency: ld-linux-x86-64.so.2()(64bit)
      provider: glibc.x86_64 2.17-326.el7_9
     dependency: ld-linux-x86-64.so.2(GLIBC_2.3)(64bit)
   .../...

1. yum deplist couch-js-1.8.5-21.el7.x86_64
   couchdb                                                                                                                                                                                                                                 19/19
   package: couch-js.x86_64 1:1.8.5-21.el7
     dependency: /sbin/ldconfig
      provider: glibc.x86_64 2.17-326.el7_9
      provider: glibc.i686 2.17-326.el7_9
     dependency: libc.so.6(GLIBC_2.14)(64bit)
      provider: glibc.x86_64 2.17-326.el7_9
     dependency: libdl.so.2()(64bit)
      provider: glibc.x86_64 2.17-326.el7_9
     dependency: libffi.so.6()(64bit)
      provider: libffi.x86_64 3.0.13-19.el7
     dependency: libgcc_s.so.1()(64bit)
      provider: libgcc.x86_64 4.8.5-44.el7
     dependency: libgcc_s.so.1(GCC_3.0)(64bit)
      provider: libgcc.x86_64 4.8.5-44.el7
   .../...