Signout out of session asks for the password instead of linking to the oidc provider

[maru-sama]

Description

Yesterday I noticed that when I try to signout from a session the system prompts for the password and does not redirect me to my oidc provider.

Initially I though that reverting back to 101 solves the issues, but I could reproduce it there as well. After the matrix service is restarted it sometimes asks for a password and other times it correctly links to the oidc provider.
Sometimes you have to restart the service several times until it works correctly.

Steps to reproduce

• Log on to the system via SSO
• Go to the sessions tab and try to signout of one of your sessions
• Instead of the link to the oidc providere the system asks for a passwsord

Homeserver

Personal Homeserver

Synapse Version

102

Installation Method

Docker (matrixdotorg/synapse)

Database

Single Postgres installation

Workers

Multiple workers and without any workers.

Platform

Docker installation on a debian sid based server.

Configuration

No response

Relevant log output

matrix                    | 2024-03-06 10:34:26,830 - synapse.access.http.8008 - 427 - DEBUG - POST-72 - 165.225.200.205 - 8008 - Received request: POST /_matrix/client/v3/delete_devices
matrix                    | 2024-03-06 10:34:26,831 - synapse.storage.txn - 759 - DEBUG - POST-72 - [TXN START] {get_user_by_access_token-95}
matrix                    | 2024-03-06 10:34:26,836 - synapse.storage.txn - 863 - DEBUG - POST-72 - [TXN END] {get_user_by_access_token-95} 0.004931 sec
matrix                    | 2024-03-06 10:34:26,837 - synapse.storage.txn - 759 - DEBUG - POST-72 - [TXN START] {mark_access_token_as_used-96}
matrix                    | 2024-03-06 10:34:26,886 - synapse.storage.txn - 863 - DEBUG - POST-72 - [TXN END] {mark_access_token_as_used-96} 0.048789 sec
matrix                    | 2024-03-06 10:34:26,888 - synapse.storage.txn - 759 - DEBUG - POST-72 - [TXN START] {get_user_locked_status-97}
matrix                    | 2024-03-06 10:34:26,889 - synapse.storage.txn - 863 - DEBUG - POST-72 - [TXN END] {get_user_locked_status-97} 0.001700 sec
matrix                    | 2024-03-06 10:34:26,892 - synapse.storage.txn - 759 - DEBUG - POST-72 - [TXN START] {get_ratelimit_for_user-98}
matrix                    | 2024-03-06 10:34:26,893 - synapse.storage.txn - 863 - DEBUG - POST-72 - [TXN END] {get_ratelimit_for_user-98} 0.001415 sec
matrix                    | 2024-03-06 10:34:26,894 - synapse.storage.txn - 759 - DEBUG - POST-72 - [TXN START] {get_users_by_id_case_insensitive-99}
matrix                    | 2024-03-06 10:34:26,896 - synapse.storage.txn - 863 - DEBUG - POST-72 - [TXN END] {get_users_by_id_case_insensitive-99} 0.001944 sec
matrix                    | 2024-03-06 10:34:26,896 - synapse.storage.txn - 759 - DEBUG - POST-72 - [TXN START] {get_external_ids_by_user-9a}
matrix                    | 2024-03-06 10:34:26,898 - synapse.storage.txn - 863 - DEBUG - POST-72 - [TXN END] {get_external_ids_by_user-9a} 0.001157 sec
matrix                    | 2024-03-06 10:34:26,898 - synapse.storage.txn - 759 - DEBUG - POST-72 - [TXN START] {create_ui_auth_session-9b}
matrix                    | 2024-03-06 10:34:26,919 - synapse.storage.txn - 863 - DEBUG - POST-72 - [TXN END] {create_ui_auth_session-9b} 0.020681 sec
matrix                    | 2024-03-06 10:34:26,920 - synapse.storage.txn - 759 - DEBUG - POST-72 - [TXN START] {set_ui_auth_session_data-9c}
matrix                    | 2024-03-06 10:34:26,928 - synapse.storage.txn - 863 - DEBUG - POST-72 - [TXN END] {set_ui_auth_session_data-9c} 0.008398 sec
matrix                    | 2024-03-06 10:34:26,929 - synapse.storage.txn - 759 - DEBUG - POST-72 - [TXN START] {add_user_agent_ip_to_ui_auth_session-9d}
matrix                    | 2024-03-06 10:34:26,953 - synapse.storage.txn - 863 - DEBUG - POST-72 - [TXN END] {add_user_agent_ip_to_ui_auth_session-9d} 0.023974 sec
matrix                    | 2024-03-06 10:34:26,954 - synapse.access.http.8008 - 472 - INFO - POST-72 - 165.225.200.205 - 8008 - {@user:mike.it-loops.com} Processed request: 0.124sec/0.000sec (0.005sec, 0.002sec) (0.002sec/0.113sec/9) 165B 401 "POST /_matrix/client/v3/delete_devices HTTP/1.1" "Mozilla/5.0 (Windows NT 10.0;

Anything else that would be useful to know?

No response