The installed /usr/lib/pam.d/cosmic-greeter ends after the pam_kwallet.so session line. These last two lines from include-greetd.patch are missing:

-session    optional    pam_oo7.so auto_start
session    include     postlogin

Commit 5bcc89e ("Add support for unlocking oo7 keyrings with login") added two pam_oo7 lines to include-greetd.patch but did not update the hunk header. The hunk has 25 lines and the header still says:

@@ -0,0 +1,23 @@

GNU patch applies only the 23 lines the header announces and drops the rest without any warning. Every build since 2026-09-02 is affected, including 1.9.1 on f45 and rawhide.

As a result, oo7-daemon is never started at login and the stashed password is never handed to it, so the oo7 keyring is not unlocked automatically. On systems upgraded from F44 that still have gnome-keyring-pam installed, the pam_gnome_keyring.so auto_start session line starts gnome-keyring first. It then takes org.freedesktop.secrets, and oo7-daemon.service fails with Zbus(NameTaken). The postlogin session stack is also skipped for every greeter login.

Reproducible: Always

Steps to Reproduce:
$ git clone -b f45 https://src.fedoraproject.org/rpms/cosmic-greeter.git
$ mkdir t && cd t && patch -p1 < ../cosmic-greeter/include-greetd.patch
patching file debian/greetd.pam
$ wc -l debian/greetd.pam
23 debian/greetd.pam
$ grep -c '^+' ../cosmic-greeter/include-greetd.patch   # 25 content lines + the "+++" line 26
$ diff debian/greetd.pam /usr/lib/pam.d/cosmic-greeter && echo identical
identical
Actual Results:
That will show that the file debian/greetd.pam only gets 23 lines, and that it still is identical with what is installed on the system. 
The last two lines in the patch is missing.

Expected Results:
that the file would include all lines in the patch, including the two last lines 
-session    optional    pam_oo7.so auto_start
session    include     postlogin

Additional Information:
The fix is to change the hunk header to @@ -0,0 +1,25 @@. Shipping the PAM file as a separate Source: instead of creating it with a patch would prevent this kind of bug from happening again.

Workaround: copy the file to /etc/pam.d/cosmic-greeter and add the two missing lines.