Commit a70587cc9f for ffmpeg

commit a70587cc9f5efc7f5e56d454a857367442cd2123
Author: Timo Rothenpieler <timo@rothenpieler.org>
Date:   Tue Sep 29 23:12:50 2026 +0200

    avformat/tls_schannel: don't automatically send client cert from users store

diff --git a/libavformat/tls_schannel.c b/libavformat/tls_schannel.c
index c2c52eec7e..a789f500fb 100644
--- a/libavformat/tls_schannel.c
+++ b/libavformat/tls_schannel.c
@@ -1168,6 +1168,7 @@ static int tls_open(URLContext *h, const char *uri, int flags, AVDictionary **op
             schannel_cred.dwFlags = SCH_CRED_MANUAL_CRED_VALIDATION |
                                     SCH_CRED_IGNORE_NO_REVOCATION_CHECK |
                                     SCH_CRED_IGNORE_REVOCATION_OFFLINE;
+        schannel_cred.dwFlags |= SCH_CRED_NO_DEFAULT_CREDS;

 #if CONFIG_DTLS_PROTOCOL
         if (s->is_dtls)