convert2rhel is failing when trying to use {{convert2rhel analyse on a CentOS 7.9 system where}}

1. kernel is not up to date
2. needs a proxy to access to the web
3. has access to a local RHEL 8 mirror
4. is not registered in subscription manager

• convert2rhel was launched as:

# CONVERT2RHEL_SKIP_KERNEL_CURRENCY_CHECK=1 CONVERT2RHEL_ALLOW_UNAVAILABLE_KMODS=1 convert2rhel analyze   --enablerepo=rhel8* --enablerepo=ep
el8*  --no-rhsm

• it failed :

[2024-05-31T15:51:47+0000] TASK - [Prepare: Validate the yum transaction] *****************************
Loaded plugins: fastestmirror, langpacks
Enabling RHEL repositories:
rhel8*
epel8*
Adding CentOS Linux packages to the yum transaction set.
Package dnf-utils is obsoleted by yum-utils, trying to install yum-utils-4.0.21-25.el8.noarch instead
Resolving the dependencies of the packages in the yum transaction set.
ERROR - (ERROR) VALIDATE_PACKAGE_MANAGER_TRANSACTION::UNEXPECTED_ERROR - Unhandled exception caught
 Description: Unhandled exception was caught: Invalid version flag: if
Please file a bug at https://issues.redhat.com/ to have this fixed or a specific error message added.
Traceback: Traceback (most recent call last):
  File "/usr/lib/python2.7/site-packages/convert2rhel/actions/_init_.py", line 572, in run
    action.run()
  File "/usr/lib/python2.7/site-packages/convert2rhel/actions/pre_ponr_changes/transaction.py", line 49, in run
    validate_transaction=True,
  File "/usr/lib/python2.7/site-packages/convert2rhel/utils.py", line 244, in wrapper
    raise process.exception
MiscError: Invalid version flag: if Diagnosis: N/A
 Remediations: N/A

• it ends:

========== Error (Must fix before conversion) ==========
(ERROR) VALIDATE_PACKAGE_MANAGER_TRANSACTION::UNEXPECTED_ERROR - Unhandled exception caught
     Description: Unhandled exception was caught: Invalid version flag: if
    Please file a bug at https://issues.redhat.com/ to have this fixed or a specific error message added.
    Traceback: Traceback (most recent call last):
      File "/usr/lib/python2.7/site-packages/convert2rhel/actions/_init_.py", line 572, in run
        action.run()
      File "/usr/lib/python2.7/site-packages/convert2rhel/actions/pre_ponr_changes/transaction.py", line 49, in run
        validate_transaction=True,
      File "/usr/lib/python2.7/site-packages/convert2rhel/utils.py", line 244, in wrapper
        raise process.exception
    MiscError: Invalid version flag: if     Diagnosis: N/A
     Remediations: N/A

• convert2rhel is the latest version:

# rpm -qi convert2rhel
Name        : convert2rhel
Version     : 1.7.1
Release     : 1.el7
Architecture: noarch
Install Date: Fri 31 May 2024 10:07:38 AM CEST
Group       : Unspecified
Size        : 1066390
License     : GPLv3+
Signature   : RSA/SHA256, Mon 04 Mar 2024 05:50:57 PM CET, Key ID 199e2f91fd431d51
Source RPM  : convert2rhel-1.7.1-1.el7.src.rpm
Build Date  : Mon 04 Mar 2024 04:58:20 PM CET