SAML to MS Azure does not work with version 5.0.2

I can also confirm that the login by SAML to MS Azure does not work with version 5.0.2 (NC = 24.0.2). Here the log output which orrurs when I try it:

{
  "reqId": "h9UXc9Ah3BCbjwhP3BE3",
  "level": 3,
  "time": "2022-06-23T12:13:20+02:00",
  "remoteAddr": "192.168.1.1",
  "user": "--",
  "app": "index",
  "method": "GET",
  "url": "/apps/user_saml/saml/login?originalUrl=&requesttoken=****token-removed****&idp=2",
  "message": "Invalid array settings: idp_entityId_not_found, idp_sso_not_found, idp_cert_or_fingerprint_not_found_and_required",
  "userAgent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:101.0) Gecko/20100101 Firefox/101.0",
  "version": "24.0.2.1",
  "exception": {
    "Exception": "OneLogin\\Saml2\\Error",
    "Message": "Invalid array settings: idp_entityId_not_found, idp_sso_not_found, idp_cert_or_fingerprint_not_found_and_required",
    "Code": 2,
    "Trace": [
      {
        "file": "/var/www/nextcloud/apps/user_saml/3rdparty/vendor/onelogin/php-saml/src/Saml2/Auth.php",
        "line": 177,
        "function": "__construct",
        "class": "OneLogin\\Saml2\\Settings",
        "type": "->",
        "args": [
          [
            true,
            false,
            "https://nextcloud-test.domain.local/apps/user_saml/saml",
            [
              false,
              false,
              false,
              false,
              false,
              "And 9 more entries, set log level to debug to see all entries"
            ],
            [
              "https://nextcloud-test.domain.local/apps/user_saml/saml/metadata",
              [
                "https://nextcloud-test.domain.local/apps/user_saml/saml/acs"
              ],
              "urn:oasis:names:tc:SAML:1.1:nameid-format:unspecified",
              "",
              ""
            ],
            "And 1 more entries, set log level to debug to see all entries"
          ]
        ]
      },
      {
        "file": "/var/www/nextcloud/apps/user_saml/lib/Controller/SAMLController.php",
        "line": 174,
        "function": "__construct",
        "class": "OneLogin\\Saml2\\Auth",
        "type": "->",
        "args": [
          [
            true,
            false,
            "https://nextcloud-test.domain.local/apps/user_saml/saml",
            [
              false,
              false,
              false,
              false,
              false,
              "And 9 more entries, set log level to debug to see all entries"
            ],
            [
              "https://nextcloud-test.domain.local/apps/user_saml/saml/metadata",
              [
                "https://nextcloud-test.domain.local/apps/user_saml/saml/acs"
              ],
              "urn:oasis:names:tc:SAML:1.1:nameid-format:unspecified",
              "",
              ""
            ],
            "And 1 more entries, set log level to debug to see all entries"
          ]
        ]
      },
      {
        "file": "/var/www/nextcloud/lib/private/AppFramework/Http/Dispatcher.php",
        "line": 225,
        "function": "login",
        "class": "OCA\\User_SAML\\Controller\\SAMLController",
        "type": "->",
        "args": [
          "*** sensitive parameters replaced ***"
        ]
      },
      {
        "file": "/var/www/nextcloud/lib/private/AppFramework/Http/Dispatcher.php",
        "line": 133,
        "function": "executeController",
        "class": "OC\\AppFramework\\Http\\Dispatcher",
        "type": "->",
        "args": [
          {
            "__class__": "OCA\\User_SAML\\Controller\\SAMLController"
          },
          "login"
        ]
      },
      {
        "file": "/var/www/nextcloud/lib/private/AppFramework/App.php",
        "line": 172,
        "function": "dispatch",
        "class": "OC\\AppFramework\\Http\\Dispatcher",
        "type": "->",
        "args": [
          {
            "__class__": "OCA\\User_SAML\\Controller\\SAMLController"
          },
          "login"
        ]
      },
      {
        "file": "/var/www/nextcloud/lib/private/Route/Router.php",
        "line": 298,
        "function": "main",
        "class": "OC\\AppFramework\\App",
        "type": "::",
        "args": [
          "OCA\\User_SAML\\Controller\\SAMLController",
          "login",
          {
            "__class__": "OC\\AppFramework\\DependencyInjection\\DIContainer"
          },
          [
            "*** sensitive parameters replaced ***",
            "user_saml.SAML.login"
          ]
        ]
      },
      {
        "file": "/var/www/nextcloud/lib/base.php",
        "line": 1023,
        "function": "match",
        "class": "OC\\Route\\Router",
        "type": "->",
        "args": [
          "/apps/user_saml/saml/login"
        ]
      },
      {
        "file": "/var/www/nextcloud/index.php",
        "line": 36,
        "function": "handleRequest",
        "class": "OC",
        "type": "::",
        "args": []
      }
    ],
    "File": "/var/www/nextcloud/apps/user_saml/3rdparty/vendor/onelogin/php-saml/src/Saml2/Settings.php",
    "Line": 141,
    "CustomMessage": "--"
  }
}

Downgrading to 5.0.1 helps.

Originally posted by @brunt82 in https://github.com/nextcloud/user_saml/issues/630#issuecomment-1164252723

Start at apps/user_saml/lib/Controller/SAMLController.php around line 174 and trace the settings passed to the OneLogin SAML library, especially Settings.php line 141. Compare behavior between versions 5.0.1 and 5.0.2 and reproduce the SAML login against MS Azure. Done means version 5.0.2 no longer reports missing IdP settings and login succeeds.