Cannot activate User Pages if Unlock Add On is already activated

[michaelbeil]

Describe the bug
If Unlock Add On is already activated, you cannot activate User Pages.

To Reproduce
Steps to reproduce the behavior:

1. Unlock Add On is already activated
2. Cannot activate User Pages

Screenshots

Customer sees this error upon activation:
Fatal error: Cannot redeclare pmproup_plugin_row_meta() (previously declared in /srv/htdocs/wp-content/plugins/pmpro-unlock/includes/admin.php:63) in /srv/htdocs/wp-content/plugins/pmpro-user-pages/pmpro-user-pages.php on line 316

I see this in the error log.

Expected behavior
You should be able to activate both.
Isolating the problem:

• Deactivated other plugins and confirmed this bug occurs when only Paid Memberships Pro is active.
• This bug happens with a default WordPress theme active, or Memberlite.
• Reproduce this bug consistently using the steps above.

This came up in ticket 485313, and I could replicate.

WordPress Environment

Paid Memberships Pro 2.10.3, User Pages Add On .6, WordPress 6.2, PHP 7.4.30

[dparker1005]

Closing as we plan to handle this issue in the PMPro Unlock Protocol Add On in the future: strangerstudios/pmpro-unlock#12